Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
tuong cua » truong cua, huong cua, thong cua
phan cong » thanh cong
toc hieu » toc thieu, doc hieu, thuc hieu
tung cua » trung cua, dung cua, tang cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: ((toc hieu) or (hoc thieu)) manh - thanh ((tung cua) or (tuong cua)) phan cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc hieu) OR (hoc thieu)) manh - thanh ((tung cua) OR (tuong cua)) phan cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((toc hieu) or (hoc thieu)) manh - thanh ((tung cua) or (tuong cua)) phan cong dan toan cao*.