Perhaps you should try some spelling variations:
doi chieu » doc hieu, mot chieu, thi chieu
dung cong » dung trong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan
ho chieu » theo chieu, hoc thieu, mot chieu
tranh va » tranh van, trang va, trinh va
phan cau » phan dau, phan cac, phan tu
doi chi » doi khi
va dung » van dung, va duong, vat dung

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