Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
chua nang » chuc nang, chua xang, kha nang
luc nganh » luc ngan, chuc nganh, luat nganh
cuu nang » chuc nang, cam nang, cuu van
khoa hoc » hoa hoc
hang tai » hang va, dung tai
so bach » so sach, song bach, noi bach
mai tap » bai tap, mai tat, mai tan
va hang » van hang, va nang, va lang
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: so bach mai tap, nghien ((cuu nang) or (chua nang)) luc nganh khoa hoc xa hoi va hang tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so bach mai tap, nghien ((cuu nang) OR (chua nang)) luc nganh khoa hoc xa hoi va hang tai.
• Adding a wildcard symbol may retrieve word variants: so bach mai tap, nghien ((cuu nang) or (chua nang)) luc nganh khoa hoc xa hoi va hang tai*.