Perhaps you should try some spelling variations:
trinh cong » trinh dung
hieu tinh » chieu tinh, kieu tinh, hieu binh
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
qua trinh » qua kinh
mang qua » mang cua, mang vua, nang quan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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) or (lieu tinh)) - hanh mang qua trinh cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu tinh) OR (lieu tinh)) - hanh mang qua trinh cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu tinh) or (lieu tinh)) - hanh mang qua trinh cong dan than cap*.