Perhaps you should try some spelling variations:
thanh trung » thanh tung
trong ban » trong san, trong tan, trong quan
doc hieu » toc thieu, hoc thieu
trung ha » trung hoc, trung tam, trung cap
phap cau » pha cau, phap ca, phap cac
phan cau » phan dau, phan cac, phan tu
ha dung » hai dung, kha dung, nha dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc hien)) xanh - thanh trung ha dung trong ban ((phap cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) xanh - thanh trung ha dung trong ban ((phap cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc hien)) xanh - thanh trung ha dung trong ban ((phap cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc hien)) xanh - thanh trung ha dung trong ban ((phap cau) or (phan cau))*.