Perhaps you should try some spelling variations:
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hoang van » hang va
hoc dieu » hoc thieu, hoc hien
doc hieu » toc thieu, hoc thieu, hoc hien
hong van » thong van, phong van, song van
toan cau » toan cao, toan ban, toan tap
hoan va » khoan va, hoang va, doan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (doc hieu)) manh - doanh hoan va nhung ((hong van) or (hoang van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (doc hieu)) manh - doanh hoan va nhung ((hong van) OR (hoang van)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (doc hieu)) manh - doanh hoan va nhung ((hong van) or (hoang van)) toan cau*.