Perhaps you should try some spelling variations:
hoc thieu » toc thieu
hanh dung » thanh dung, anh dung, hanh dong
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
ho chieu » theo chieu, doi chieu, mot chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (((hoc thieu) OR (hoc hien)))) sach - hanh dung luan nang cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((hoc thieu) OR (hoc hien)))) sach - hanh dung luan nang cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (((hoc thieu) OR (hoc hien)))) sach - hanh dung luan nang cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((hoc thieu) OR (hoc hien)))) sach - hanh dung luan nang cong tan toan cau*.