Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
cong coc » cong cuoc, cong cac, cong co
tan nhan » tran nhan, tao nhan, van nhan
nhan van » nhan dan, nhan va, phan van
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
hoc tai » hoc dai, hoc tap, hoc bai
hai tan » hai van, hai quan
mo hoc » mon hoc, co hoc
coc xa » hoc xa, cac xa, coc ha
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 ((hoi tap) or (hoc tai)), nghien cuu mo hoc nganh cong coc xa hai tan nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((hoi tap) OR (hoc tai)), nghien cuu mo hoc nganh cong coc xa hai tan nhan van.
• Adding a wildcard symbol may retrieve word variants: tu sach ((hoi tap) or (hoc tai)), nghien cuu mo hoc nganh cong coc xa hai tan nhan van*.