Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
theo chu » theo chieu, cho chu, theo yeu
chao chu » cho chu, cua chu, cao cho
anh tang » anh bang, anh dang, anh nang
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
tang va » trang va, tang van, thang va

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

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