Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
hanh tranh » hanh trinh, hanh trang, lanh tranh
hoc thieu » toc thieu, hoc hien
cua trung » cua truong, xuan trung, cua nhung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
chan cao » chan cho, chat cao, chay cao

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 manh - ((hanh tranh) OR (canh tranh)) cua trung ((cong tan) or (cong san)) chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - ((hanh tranh) OR (canh tranh)) cua trung ((cong tan) OR (cong san)) chan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu manh - ((hanh tranh) OR (canh tranh)) cua trung ((cong tan) or (cong san)) chan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - ((hanh tranh) OR (canh tranh)) cua trung ((cong tan) or (cong san)) chan cao*.