Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
treo chu » theo chu, tho chu
chu nang » chuc nang, chua nang, cuu nang
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
hang ca » nang cao, hang tai, hang dau

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

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