Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nganh hong » nganh khong, nganh cong, nganh nong
hong phuoc » hoang phuong
cac nganh » hoc nganh
van thanh » ban thanh, van tuan
thanh van » thanh san, thanh toan, thanh phan
thu sach » thuat sach, thuoc sach, thu hoach
cong cac » cuong cac, cong tac, cong cau
phuoc xa » thuoc ma, hoc xa, thuoc va
tu sach » su sach, te sach, tu cach
hai van » thai van, ha van, hai tan
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu sach)) hoc tap, nghien thu cong cac nganh hong phuoc xa hai van thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) hoc tap, nghien thu cong cac nganh hong phuoc xa hai van thanh van.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) hoc tap, nghien thu cong cac nganh hong phuoc xa hai van thanh van*.