Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doanh nang » doanh sang, doanh nhung, doanh quang
thuong dan » thuong han, thuong dam, thuong lan
toc chieu » toc thieu, doc hieu, hoc thieu
nang doc » nang luc
doc cong » hoc cong, duc cong, do cong
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu tinh - doanh nang doc cong ((thuong dan) or (huong dan)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu tinh - doanh nang doc cong ((thuong dan) OR (huong dan)) phan lap.
• Adding a wildcard symbol may retrieve word variants: toc chieu tinh - doanh nang doc cong ((thuong dan) or (huong dan)) phan lap*.