Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nganh » hoc nhanh
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
thuoc xa » thuoc ma, thuoc va, thuoc la
cuu mon » cuu mo, cuu mot, cuu tong
nhan va » nhan tai, nhan dan, nhan tao
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: thu sach hoc tap, nghien ((cuu mon) OR (cuu cong)) hoc nganh khong thuoc xa hoi ca nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nghien ((cuu mon) OR (cuu cong)) hoc nganh khong thuoc xa hoi ca nhan va".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien ((cuu mon) OR (cuu cong)) hoc nganh khong thuoc xa hoi ca nhan va*.