Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
lieu tinh » trieu tinh, bien tinh
dung cong » dung trong
tay tieng » tap tieng, ta tieng, day tieng
tran van » luan van
van dung » van dong, xay dung, tin dung
va tieng » va tinh, tu tieng, va thong

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) OR (diep tinh)) - thanh tran van dung cong ((tay tieng) or (va tieng)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((lieu tinh) OR (diep tinh)) - thanh tran van dung cong ((tay tieng) OR (va tieng)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((lieu tinh) OR (diep tinh)) - thanh tran van dung cong ((tay tieng) or (va tieng)) tap".
• Adding a wildcard symbol may retrieve word variants: ho ((lieu tinh) OR (diep tinh)) - thanh tran van dung cong ((tay tieng) or (va tieng)) tap*.