Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thanh chau » thanh cha, thanh cham, thanh chu
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, dung cong
hang cong » dang cong, hang nong, thanh cong
tac thanh » bac thanh, cac thanh, tcc thanh
ho chiet » ho chieu, ho thiet, hoa thiet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chiet) or (hoc thiet)) tach - hanh trinh cua ((bang cong) OR (hang cong)) tac thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (hoc thiet)) tach - hanh trinh cua ((bang cong) OR (hang cong)) tac thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) or (hoc thiet)) tach - hanh trinh cua ((bang cong) OR (hang cong)) tac thanh chau".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (hoc thiet)) tach - hanh trinh cua ((bang cong) OR (hang cong)) tac thanh chau*.