Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
nang trong » nang truong, lang trong, mang trong
trong dang » truong dang, trong dan, trong dong
luan nang » luan van, van nang, luan san
anh dung » anh dong, anh huong, sach dung
dang van » hoang van, hang va
van mau » van dau, van cau, van hau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) sach - anh dung luan nang trong dang van mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - anh dung luan nang trong dang van mau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sach - anh dung luan nang trong dang van mau*.