Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
hanh tranh » hanh trinh, hanh trang, lanh tranh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua trung » cua truong, xuan trung, cua nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan cho » chat cho, han cho, chuan chon

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 - ((hanh tranh) or (canh tranh)) cua trung cong tan chan cho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh tranh) OR (canh tranh)) cua trung cong tan chan cho.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((hanh tranh) or (canh tranh)) cua trung cong tan chan cho*.