Perhaps you should try some spelling variations:
den thanh » de thanh, dinh thanh, dong thanh
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
hoc den » hoc dan, hoc de, hoc hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc den thanh - hanh ((doanh cua) or (doanh tai)) hang cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc den thanh - hanh ((doanh cua) OR (doanh tai)) hang cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc den thanh - hanh ((doanh cua) or (doanh tai)) hang cong tan toan cau*.