Perhaps you should try some spelling variations:
hien nganh » vien nganh, hien nhanh, trien nganh
hieu nganh » vien nganh, hiem ngan, hieu manh
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: hoc ((hien nganh) OR (hieu nganh)) - canh tranh va dung cong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nganh) OR (hieu nganh)) - canh tranh va dung cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nganh) OR (hieu nganh)) - canh tranh va dung cong tan toan cao*.