Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung khanh » truong khanh, trung thanh, truong thanh
thieu xanh » chieu xanh, hieu manh, thien anh
khanh dung » khanh duong, hanh dung, thanh dung
dung cong » dung trong
tien anh » tieng anh, tien manh, dien anh
van than » van thanh, van thang, van tuan

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) or (tien anh)) - thanh trung khanh dung cong ((anh tuan) or (van than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (tien anh)) - thanh trung khanh dung cong ((anh tuan) OR (van than)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (tien anh)) - thanh trung khanh dung cong ((anh tuan) or (van than)) cao*.