Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu hach » thien hach, chieu sach, hieu cach
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: hoc ((thieu hach) or (thien thanh)) - canh tranh cua nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu hach) OR (thien thanh)) - canh tranh cua nhung cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu hach) or (thien thanh)) - canh tranh cua nhung cong dan toan tap*.