Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nganh khong » nganh cong, nhanh chong, nganh nong
hoc nganh » hoc nhanh
thuoc tai » nuoc tai, hoc tai, thuoc ma
van thanh » ban thanh, van tuan
cach hoc » cach thuc, cach thoi, dich hoc
thanh va » thanh van, hanh va, thanh ha
tu cach » tu cac
cuu mon » cuu mot, cuu cong, cuu tong
tai hoi » tai khoi, dai hoi, tai hai
hoi van » hoi va, hoi dan, hai van

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoc tap, nghien ((cuu mon) or (cuu mo)) hoc nganh khong thuoc tai hoi van thanh va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien ((cuu mon) OR (cuu mo)) hoc nganh khong thuoc tai hoi van thanh va.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien ((cuu mon) or (cuu mo)) hoc nganh khong thuoc tai hoi van thanh va*.