Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong huong » khong xuong, thong huong, thong thuong
cuu thanh » cuu tinh
hoc nganh » hoc nhanh
sach doi » sach hoi, sach moi, sach dao
cuu hoan » luu hoang, cuu van, cuu khoa
huong xa » huong va, duong xa, hmong xa
so sach » so sanh, bo sach, co sach
doi dap » hoi dap, doi dau, do dap
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: so sach doi dap, nghien ((cuu thanh) or (cuu hoan)) hoc nganh khong huong xa hoi ca nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach doi dap, nghien ((cuu thanh) OR (cuu hoan)) hoc nganh khong huong xa hoi ca nhan va.
• Adding a wildcard symbol may retrieve word variants: so sach doi dap, nghien ((cuu thanh) or (cuu hoan)) hoc nganh khong huong xa hoi ca nhan va*.