Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cua tinh
lanh manh » lanh tranh, lan anh, van manh
doi chau » doi chieu, gioi chau, hoi chu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chau tinh - ((canh tranh) or (lanh manh)) va nhung cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chau tinh - ((canh tranh) OR (lanh manh)) va nhung cong tan toan tap.
• Adding a wildcard symbol may retrieve word variants: doi chau tinh - ((canh tranh) or (lanh manh)) va nhung cong tan toan tap*.