Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
trung hoc » trung quoc
trung va » truong va, trang va, trung ha
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - manh ((trung va) or (trung hoc)) nhung cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - manh ((trung va) OR (trung hoc)) nhung cong tan than cap.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - manh ((trung va) or (trung hoc)) nhung cong tan than cap*.