Perhaps you should try some spelling variations:
luan nhung » luan chung, luan hung, quan nhung
theo chieu » theo tieu, ho chieu, thi chieu
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
theo chu » cho chu, chao chu, theo yeu
cong tac » cong ty
tac can » tac van, tac quan, tac vang
can cau » van cau, ban cau, ca cau

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 chu)) sach - hanh tang luan nhung cong tac can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) sach - hanh tang luan nhung cong tac can cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) sach - hanh tang luan nhung cong tac can cau*.