Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhanh thang, nhan thong
hoc nhanh » hoc nganh, hoc phan
thong hoc » thuong hoc, tuong hoc, thong hoa
van phan » van phong, van thanh, luan phan
phan tai » pham tai, nhan tai, phan thi
so sach » so sanh, bo sach, co sach
doi tap » doi dap, doi tai, doi tan
doi tac » dong tac
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hai van » thai van, ha van, hai tan
ma hai » ta hai, va hai, xa hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((doi tap) or (doi tac)), nghien cuu mot hoc nhanh thong hoc ma hai van phan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((doi tap) OR (doi tac)), nghien cuu mot hoc nhanh thong hoc ma hai van phan tai*.