Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, thien tinh, lieu tinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh dung » thanh duong, thanh tung, thanh hung
dung cong » dung trong
dung thi » dung tai, dung tri, dung chi
thi dung » thi huong, thi nhung, thi cong
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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 tinh) or (chieu tinh)) - thanh dung thi dung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (chieu tinh)) - thanh dung thi dung cong san than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) or (chieu tinh)) - thanh dung thi dung cong san than cau*.