Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
thuyet anh » thuyet kinh, thuy anh, thuyet dan
thiet anh » thien anh, thien danh, thich anh
hang cong » dang cong, hang nong, bang cong
cong san » cong tac
san quan » van quan, ban quan, dan quan
tran va » tran van, trang va, tranh va
va hang » van hang, va nang, va lang
quan ha » quan he

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thiet anh) OR (thuyet anh)) - thanh tran va hang cong san quan ha~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thiet anh) OR (thuyet anh)) - thanh tran va hang cong san quan ha".
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet anh) OR (thuyet anh)) - thanh tran va hang cong san quan ha*.