Perhaps you should try some spelling variations:
chung thi » phung thi, chung chi, nhung thi
luan nang » luan van, van nang, luan san
bien tram » bien tam, bien tran, bien tap
trong ban » trong san, trong quan, trong cac
trong tan » trong quan, trong cac, trong ca
thi luan » thi lan, thi xuan, thi loan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: chung thi luan nang. bien tram ((trong ban) or (trong tan)) than~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chung thi luan nang. bien tram ((trong ban) OR (trong tan)) than.
• Adding a wildcard symbol may retrieve word variants: chung thi luan nang. bien tram ((trong ban) or (trong tan)) than*.