Perhaps you should try some spelling variations:
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
van nhan » van phan, van thanh, danh nhan
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoc anh » hoc nganh, hoc nhanh, hoc sinh
anh hoa » anh khoa, danh hoa, hanh hoa
hai van » thai van, ha van, hai tan
nhan va » nhan tai, nhan dan, nhan tao
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((mach hoc) or (cach hoc)) tap, nghien cuu mot hoc anh hoa hoc xa hai van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((mach hoc) OR (cach hoc)) tap, nghien cuu mot hoc anh hoa hoc xa hai van nhan va.
• Adding a wildcard symbol may retrieve word variants: vu ((mach hoc) or (cach hoc)) tap, nghien cuu mot hoc anh hoa hoc xa hai van nhan va*.