Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tran » canh tranh, hanh trang, banh trang
tran hanh » tran thanh, tran khanh, tran manh
hanh cong » thanh cong, hang cong, hanh dong
cong cong » cong dong, trong cong, dung cong
kham phan » phap phan, dam phan, khai pha
toc hieu » toc thieu, doc hieu, hoc thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - canh tran hanh cong cong ((kham phan) or (kham pha)) bi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - canh tran hanh cong cong ((kham phan) OR (kham pha)) bi*.