Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chu » theo chieu, cho chu, chao chu
dung cua » dung cho
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
theo ha » theo phap, thep nha, theo cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo ha) OR (theo chu)) tinh - hanh ((dung cua) or (dung luan)) nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo ha) OR (theo chu)) tinh - hanh ((dung cua) OR (dung luan)) nhung cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo ha) OR (theo chu)) tinh - hanh ((dung cua) or (dung luan)) nhung cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: ((theo ha) OR (theo chu)) tinh - hanh ((dung cua) or (dung luan)) nhung cong dan toan tap*.