Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
nang cong » nang song, dang cong, bang cong
cong luan » tong luan, cong tuan, dong luan
luan phan » luan van, luan hoan
ho chieu » theo chieu, hoc thieu, mot chieu
thi dieu » thi lien, thi hien, vi dieu
tranh va » tranh van, trang va, trinh va
phan cau » phan dau, phan cac, phan tu
va nang » van nang, da nang, cam nang

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 (thi dieu))) or (doi chieu)) xanh - canh tranh va nang cong luan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (thi dieu))) OR (doi chieu)) xanh - canh tranh va nang cong luan phan cau.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (thi dieu))) or (doi chieu)) xanh - canh tranh va nang cong luan phan cau*.