Perhaps you should try some spelling variations:
luan nang » van nang, luan san
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - anh tang ((luan nang) or (luan van)) cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - anh tang ((luan nang) OR (luan van)) cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - anh tang ((luan nang) or (luan van)) cong dan phan cau*.