Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
khao cuu » cham cuu, chao chu, kho cua
hang cua » mang cua, huong cua, thong cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
hang ca » hang va, 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: khao cuu van - anh ((hang cua) or (((hang ca) OR (nang cao)))) nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: khao cuu van - anh ((hang cua) OR (((hang ca) OR (nang cao)))) nhung cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "khao cuu van - anh ((hang cua) or (((hang ca) OR (nang cao)))) nhung cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: khao cuu van - anh ((hang cua) or (((hang ca) OR (nang cao)))) nhung cong dan toan tap*.