Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
hoc hieu » hoc thieu, hoc hien, doc hieu
anh dung » anh dong, anh huong, sach dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » 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: hoc hieu manh - anh dung ((cua thong) OR (cua khong)) cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - anh dung ((cua thong) OR (cua khong)) cong tan toan cau*".