Perhaps you should try some spelling variations:
thong than » thong thanh, thong phan, thong nhan
doi chieu » doc hieu, doi chi, mot chieu
canh tran » canh tranh, hanh trang, banh trang
van thong » van thuong, van phong, va thong
thong tan » thong tran, thong tin, thong van
ho chieu » theo chieu, hoc thieu, mot chieu
tran van » luan van
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 (doi chieu)) xanh - canh tran van thong ((thong tan) OR (thong than)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - canh tran van thong ((thong tan) OR (thong than)) phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) xanh - canh tran van thong ((thong tan) OR (thong than)) phan cac".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - canh tran van thong ((thong tan) OR (thong than)) phan cac*.