Perhaps you should try some spelling variations:
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thanh hoa » thanh pho
dich hoc » sinh hoc, hinh hoc, tinh hoc
nhan tai » hang tai, toan tai
tu dich » te dich, chu dich, hut dich
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoc mai » hoc ma, hoc dai, hoc bai
mai hoi » mai khoi, dai hoi, lai hoi
van tai » von tai, van tuan

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

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