Perhaps you should try some spelling variations:
trong dang » truong dang, trong dan, trong dong
phan cong » thanh cong
dan trong » ban trong, dat trong, dao trong
doc hieu » hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dang van » hoang van, hang va
van dan » van ban, ban dan, van dao

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) or (toc thieu)) tinh - phan cong dan trong dang van dan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) tinh - phan cong dan trong dang van dan ca.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) tinh - phan cong dan trong dang van dan ca*.