Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
doi chieu » doc hieu, doi chi, mot chieu
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan
gian tap » gian tay, gian tam, gian thai

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)) sang - canh tranh luan nang cong dan gian tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sang - canh tranh luan nang cong dan gian tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sang - canh tranh luan nang cong dan gian tap*.