Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hanh trung » thanh trung, hanh trang, manh trung
hieu manh » chieu xanh, hieu nganh, hien hanh
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
toan ban » van ban
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((dieu hanh) or (hieu manh)) - hanh trung cap nhung huong dan ((toan ban) or (than man))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((dieu hanh) OR (hieu manh)) - hanh trung cap nhung huong dan ((toan ban) OR (than man)).
• Adding a wildcard symbol may retrieve word variants: doc ((dieu hanh) or (hieu manh)) - hanh trung cap nhung huong dan ((toan ban) or (than man))*.