Perhaps you should try some spelling variations:
thieu hach » thien hach, chieu sach, hieu cach
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty

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 hach - hanh trung cap nhung ((cong tan) or (cong tac)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu hach - hanh trung cap nhung ((cong tan) OR (cong tac)) van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu hach - hanh trung cap nhung ((cong tan) or (cong tac)) van ban*.