Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thong than » thong thanh, thong phan, thong nhan
trong danh » trong doanh, truong danh, trong anh
hoc thieu » hoc hien
trinh van » trinh han, trinh quan, trinh toan
van thong » van thuong, van phong, va thong
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) sang - canh trinh van thong ((thong than) or (trong danh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sang - canh trinh van thong ((thong than) OR (trong danh)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) sang - canh trinh van thong ((thong than) or (trong danh)) toan tap*.