Perhaps you should try some spelling variations:
thanh chau » thanh cha, thanh cham, thanh chu
hoc thieu » hoc hien
chinh han » chinh phan, chinh ban, chinh can
dung cong » dung trong
ban thanh » ban hanh, ban hang
chin han » chinh phan, chin cham, chinh ban
cong ban » cong bang, cong san, cong tan

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) or (toc thieu)) thanh - hanh ((chinh han) OR (chin han)) dung cong ban thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) thanh - hanh ((chinh han) OR (chin han)) dung cong ban thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) thanh - hanh ((chinh han) OR (chin han)) dung cong ban thanh chau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) thanh - hanh ((chinh han) OR (chin han)) dung cong ban thanh chau*.