Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
tran trong » gian trong, quan trong, tran hong
hoc thieu » toc thieu, hoc hien
trong dan » trong dang, trong san, trong tan
van dung » xay dung, tin dung
cong san » cong tac
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 xanh - tran trong ((van dung) or (van dong)) ((trong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - tran trong ((van dung) OR (van dong)) ((trong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - tran trong ((van dung) or (van dong)) ((trong dan) or (cong san)) toan cau*.