Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, anh trinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tinh » hanh tinh, manh tinh, canh tranh
van thang » van thanh, van khang, van hang
hoc hieu » hoc thieu, hoc hien, doc hieu
va thang » va thanh, va thong, va hang
long dan » long doan, cong dan, nong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - ((canh trinh) or (canh tinh)) ((va thang) OR (van thang)) long dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((canh trinh) OR (canh tinh)) ((va thang) OR (van thang)) long dan phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((canh trinh) or (canh tinh)) ((va thang) OR (van thang)) long dan phan cau*".