Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
khach tai » khach trai, khau tai, khach san
thanh tra » thanh hoa
nghiem du » nghiem dau, nghiem d, nghiem de
te khach » he khach, tri khach, tan khach
chi duoc » che duoc, cho duoc, chet duoc
duoc hoc » quoc hoi
tai chi » tai chinh
du hoc » tu hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te khach tai chi duoc hoc ) or ( le ((thanh tra) OR (thanh toan)) nghiem du hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te khach tai chi duoc hoc ) OR ( le ((thanh tra) OR (thanh toan)) nghiem du hoc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( te khach tai chi duoc hoc ) or ( le ((thanh tra) OR (thanh toan)) nghiem du hoc ))".
• Adding a wildcard symbol may retrieve word variants: (( te khach tai chi duoc hoc ) or ( le ((thanh tra) OR (thanh toan)) nghiem du hoc ))*.