Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
luan dung » lan dung, luan dong, luan hung
dung cong » dung trong
thanh lap » thanh san, phan lap, thanh hai
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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