Perhaps you should try some spelling variations:
thanh trung » thanh tung
dung phuong » dung thuong, bang phuong, dung chung
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu lang » chieu sang, hieu quang, nhieu tang
trung cap » truong cao, trung tam
van thanh » ban thanh, van tuan
cap dung » ap dung, cao dung, chan dung
dan toan » van toan, dan than, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (chieu tinh)) - thanh trung cap dung phuong ((dan toan) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu tinh)) - thanh trung cap dung phuong ((dan toan) OR (van thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu tinh)) - thanh trung cap dung phuong ((dan toan) or (van thanh)) cau*.