Perhaps you should try some spelling variations:
tran khoa » toan khoa, san khoa, nhan khoa
toc hinh » toc kinh, hoc hinh, toc xinh
hinh hoc » sinh hoc, tin hoc, benh hoc
hoc tran » hoc tan, hoc tren, boc tran
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoc cau » hoc cao, hoc cac, hoc can
hoc xa » hoc ma
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: toc hinh hoc tap, nghien cuu mot hoc tran khoa hoc xa ((hoi ca) or (hoc cau)) nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hinh hoc tap, nghien cuu mot hoc tran khoa hoc xa ((hoi ca) OR (hoc cau)) nhan tai.
• Adding a wildcard symbol may retrieve word variants: toc hinh hoc tap, nghien cuu mot hoc tran khoa hoc xa ((hoi ca) or (hoc cau)) nhan tai*.