Perhaps you should try some spelling variations:
mot trieu » mot chieu, mot tri, mon triet
dung cong » dung trong
sinh cua » manh cua, dinh cuu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
sinh va » sinh vat, tinh va, dinh van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: mot trieu tinh - hanh ((sinh cua) or (sinh va)) dung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot trieu tinh - hanh ((sinh cua) OR (sinh va)) dung cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: mot trieu tinh - hanh ((sinh cua) or (sinh va)) dung cong dan toan tap*.