Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
tranh va » tranh van, trang va, trinh va
cong tac » cong ty
than cau » phan cau, than cap, thanh chau
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: ((hoc chieu) OR (hoc thieu)) sach - canh tranh va nhung cong tac ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) sach - canh tranh va nhung cong tac ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) sach - canh tranh va nhung cong tac ((than cau) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc thieu)) sach - canh tranh va nhung cong tac ((than cau) or (toan cau))*.