Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
tranh vat » trinh vat, tranh va, tranh van
vat thong » va thong, vat trong, mat thong
luan phan » luan van, luan hoan
ho chieu » theo chieu, doi chieu, mot chieu
van khan » van khanh, van khang, van phan

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