Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
thuat sach » thuat lanh, thuat san
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
chang tai » hang tai, nhan tai, chinh tai
ca chang » ca chung, co chang, san chang
te sach » toc sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
ma hoi » mai hoi, xa hoi, ma hoa
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thuat sach)) hoc tap, nghien cuu mon hoc nganh khong hoc ma hoi ca chang tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat sach)) hoc tap, nghien cuu mon hoc nganh khong hoc ma hoi ca chang tai.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat sach)) hoc tap, nghien cuu mon hoc nganh khong hoc ma hoi ca chang tai*.