Perhaps you should try some spelling variations:
chat truong » chat trong, chat luong, cac truong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung toan » dung doanh, dung thang, dung thanh
doc hieu » toc thieu, hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
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: doc hieu tinh - hanh tinh chat truong ((dung toan) or (cong tan)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu tinh - hanh tinh chat truong ((dung toan) OR (cong tan)) phan lap.
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - hanh tinh chat truong ((dung toan) or (cong tan)) phan lap*.