Perhaps you should try some spelling variations:
thieu cach » hieu cach, thieu cac, hieu cac
cdoanh van » doan van, doanh va, doanh ban
hoc thieu » toc thieu, hoc hien
doanh van » doan van, doanh va, doanh ban
cua tong » cua cong, cua dong, cua song
cua nong » cua cong, cuu nong, cua dong
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 thieu cach - ((cdoanh van) or (doanh van)) ((cua tong) OR (cua nong)) cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu cach - ((cdoanh van) OR (doanh van)) ((cua tong) OR (cua nong)) cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu cach - ((cdoanh van) or (doanh van)) ((cua tong) OR (cua nong)) cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu cach - ((cdoanh van) or (doanh van)) ((cua tong) OR (cua nong)) cong tan toan cau*.