Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh trong » hanh trang, anh trong, hinh trong
quang dung » quang trung, ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
quan dung » quan duong, qua dung, quan dong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 - hanh trong ((quan dung) or (quang dung)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh trong ((quan dung) OR (quang dung)) cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh trong ((quan dung) or (quang dung)) cong dan toan cau*.