Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cung » dung chung, dung cong, dung ung
trinh ve » trinh he, trinh va, trinh vi
cung bai » cuong bai, dung bai, nhung bai
toan cao » toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu
ve dung » ve duong, ve rung, va dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu manh - canh trinh ve dung cung bai ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu manh - canh trinh ve dung cung bai ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ho hieu manh - canh trinh ve dung cung bai ((toan cao) or (van ban))*.