Perhaps you should try some spelling variations:
thanh khong » thanh hong, thinh khong, thanh chuong
khong hoc » khung hoc, thong hoc, khong thuoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu long » cuu cong, cuu tong
cuu nang » chuc nang, cam nang, cuu van
co thanh » cho thanh, o thanh, co tranh
nhan tai » hang tai, van tai, toan tai
tu mach » tu cach, tu manh, tu hach
va nhan » van nhan, ca nhan, va phan
hoc xa » hoc ma

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

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