Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
hieu xanh » chieu xanh, hieu manh, hieu nganh
doc hieu » toc thieu, hoc thieu, hoc hien
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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 xanh - thanh ((trung tuan) or (truong cua)) thong thong ((dan than) OR (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((trung tuan) OR (truong cua)) thong thong ((dan than) OR (dan chan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh ((trung tuan) or (truong cua)) thong thong ((dan than) OR (dan chan)) cau".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((trung tuan) or (truong cua)) thong thong ((dan than) OR (dan chan)) cau*.