Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tong cong » trong cong, cong cong, dung cong
doi lieu » duoc lieu, doi chieu, du lieu
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - thanh ((tung cua) or (dung cua)) tong cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - thanh ((tung cua) OR (dung cua)) tong cong tan than cap.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - thanh ((tung cua) or (dung cua)) tong cong tan than cap*.