Perhaps you should try some spelling variations:
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep tinh, bien tinh
tong cong » trong cong, cong cong, dung cong
thang va » hang va, thong va, thanh va
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo lieu tinh - thanh ((thang va) or (trang va)) tong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo lieu tinh - thanh ((thang va) OR (trang va)) tong cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo lieu tinh - thanh ((thang va) or (trang va)) tong cong dan toan cao*.