Perhaps you should try some spelling variations:
thanh cham » thanh pham, thanh cha, hanh cham
phan thanh » pham thanh, ban thanh, van thanh
cham nhung » tham nhung, cam nhung, cua nhung
tien manh » tien anh, tien thanh, tieng anh
cong nhan » cong thanh, cong san, dung nhan
cong nhat » cong ha, cong suat, dang nhat
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: toc ((dieu hanh) or (tien manh)) - phan thanh cham nhung ((cong nhan) OR (cong nhat)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((dieu hanh) OR (tien manh)) - phan thanh cham nhung ((cong nhan) OR (cong nhat)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((dieu hanh) or (tien manh)) - phan thanh cham nhung ((cong nhan) OR (cong nhat)) toan tap".
• Adding a wildcard symbol may retrieve word variants: toc ((dieu hanh) or (tien manh)) - phan thanh cham nhung ((cong nhan) OR (cong nhat)) toan tap*.