Perhaps you should try some spelling variations:
nthanh hang » tranh hang, thanh hung, thanh hoang
thanh hang » thanh hoang, thanh thang, tranh hang
tieu tinh » trieu tinh, tieu trinh, lieu tinh
dung cong » dung trong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - ((thanh hang) OR (nthanh hang)) va dung cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((thanh hang) OR (nthanh hang)) va dung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((thanh hang) OR (nthanh hang)) va dung cong tac toan cau*.