Perhaps you should try some spelling variations:
thong than » thong thanh, thong phan, thong nhan
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, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
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 (doc hieu)) 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 (doc hieu)) xanh - canh tran van thong ((thong tan) OR (thong than)) phan cac.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - canh tran van thong ((thong tan) or (thong than)) phan cac*.