Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
canh trang » canh tranh, hanh trang, banh trang
hoc thieu » toc thieu, hoc hien
va phuong » va thuong, cac phuong
ho chieu » theo chieu, doi chieu, mot chieu
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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)) sach - canh trang va phuong cong dan ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - canh trang va phuong cong dan ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - canh trang va phuong cong dan ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - canh trang va phuong cong dan ((phan cau) OR (phan cac))*.