Perhaps you should try some spelling variations:
nhanh chong » thanh cong
thu mach » thu sach, thuat mach, thu hoach
mach hoc » cach hoc, dich hoc, anh hoc
thuoc va » thuc va, thuoc ma, thuong va
cua nhan » ca nhan, cua ngan, cua nha
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoi cua » hoi chuc
nhan va » nhan tai, nhan dan, nhan tao
va hoi » xa hoi, va hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu mach hoc tap, nghien cuu mot hoc ((nhanh chong) or (khanh phong)) thuoc va hoi cua nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu mach hoc tap, nghien cuu mot hoc ((nhanh chong) OR (khanh phong)) thuoc va hoi cua nhan va.
• Adding a wildcard symbol may retrieve word variants: thu mach hoc tap, nghien cuu mot hoc ((nhanh chong) or (khanh phong)) thuoc va hoi cua nhan va*.