Perhaps you should try some spelling variations:
thanh tung » thanh cong
thi phuong » thi truong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
doc hieu » toc thieu, hoc thieu, hoc hien
thi hong » thi cong, thi hanh
thi nang » thi cong, ki nang, thi hanh
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - thanh tung ((((thi hong) or (thi nang))) or (thi phuong)) cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu tinh - thanh tung ((((thi hong) OR (thi nang))) OR (thi phuong)) cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - thanh tung ((((thi hong) or (thi nang))) or (thi phuong)) cong dan than ban*.