Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
hang tai » hang va, dung tai
nang van » dang van, tang van, lang van
nganh ky » nganh y, nganh xay, hanh ky
van hang » van khang, van hoang, van thang
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
cua tre » cuu tre, cua triet, dua tren
cac dac » cac dai, cac bac, cac tac
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nganh ky nang van hoi. hieu ve ((cac dac) OR (cac dan)) van hang tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nganh ky nang van hoi. hieu ve ((cac dac) OR (cac dan)) van hang tai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nganh ky nang van hoi. hieu ve ((cac dac) OR (cac dan)) van hang tai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: hoc nganh ky nang van hoi. hieu ve ((cac dac) OR (cac dan)) van hang tai ((cua tre) or (cua te))*.