Perhaps you should try some spelling variations:
thien danh » thien dang, thien thanh, thien chanh
thien anh » tien anh, thien thanh, thien chanh
hanh tran » hanh trang, thanh tran, hanh tram
cong sang » cong lang, cong vang, cong bang
tran van » luan van
van nang » van quang, van ban, van dong
cong san » cong tac
quan ha » quan he

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien anh) or (thien danh)) - hanh tran van nang ((cong san) or (cong sang)) quan ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (thien danh)) - hanh tran van nang ((cong san) OR (cong sang)) quan ha.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (thien danh)) - hanh tran van nang ((cong san) or (cong sang)) quan ha*.