Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
doanh nang » doanh sang, doanh nhung, doanh quang
thuong dan » thuong han, thuong dam, thuong lan
hoc thieu » toc thieu, hoc hien
nang doc » nang luc
doc cong » hoc cong, duc cong, do cong
than cau » toan cau, phan cau, than cap

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 tinh - doanh nang doc cong ((thuong dan) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - doanh nang doc cong ((thuong dan) OR (huong dan)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - doanh nang doc cong ((thuong dan) or (huong dan)) than cau*.