I'm a fresher in the air fare searching and KVS using.

No idea about many many items...e.g. what do those fares mean?
e.g. the fare shown below, are they round trip fare or only for the single route HKG-SYD?


HKG Hong Kong Intl HK [VHHH]
SYD Sydney Kingsford Smith NS AU [YSSY]
R/T Jul 2011 - Jun 2012

Carrier From To Fare Cur AdvanceP Min Max Fare Basis/TD | Travel Period
--------- ------ ---- -------- ---- -------- --- --- -----------------------------
OZ HKG SYD 607 AUD *** 1M VLE1MHK
OZ HKG SYD 675 AUD *** KLRTHK
OZ HKG SYD 943 AUD *** 1M VHE1MHK
OZ HKG SYD 1077 AUD *** KHRTHK
OZ HKG SYD 2505 AUD *** YRT
OZ HKG SYD 2821 AUD *** ZLRTHK
YY HKG SYD 2869 AUD *** YIF
OZ HKG SYD 2953 AUD *** ZHRTHK
OZ HKG SYD 4392 AUD *** CRT
OZ HKG SYD 5658 AUD *** FRT
YY HKG SYD 6175 AUD *** CIF
YY HKG SYD 8083 AUD *** FIF