Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu, hoc hien
trung cap » truong cao, trung tam
cap dang » cao dang, cac dang, cap bang
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
phan tap » phan lap, han tap, phan tu
pha tap » pham tai

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 xanh - hanh trung cap dang ((cong dan) or (cong tac)) ((phan tap) OR (pha tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trung cap dang ((cong dan) OR (cong tac)) ((phan tap) OR (pha tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trung cap dang ((cong dan) or (cong tac)) ((phan tap) OR (pha tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trung cap dang ((cong dan) or (cong tac)) ((phan tap) OR (pha tap))*.