Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
thien hach » thien thanh, hien hanh
nhung cong » thong cong, hang cong, nhung don
trung vap » trung cap, trung va, trung van
dung cong » dung trong
hanh luat » nganh luat, hang luan, hanh lam
san hanh » san thanh, ban hanh, van hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (thien hach)) - thanh trung vap ((nhung cong) OR (dung cong)) san hanh luat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (thien hach)) - thanh trung vap ((nhung cong) OR (dung cong)) san hanh luat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chiet tach) or (thien hach)) - thanh trung vap ((nhung cong) OR (dung cong)) san hanh luat".
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (thien hach)) - thanh trung vap ((nhung cong) OR (dung cong)) san hanh luat*.