Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
van thanh » ban thanh, van tuan
sach hoc » cach hoc, sach hoi, mach hoc
khoa hoc » hoa hoc
van nhan » van phan, danh nhan, van khanh
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
xa thai » ca thai, a thai, da thai
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach hoc tap, nghien cuu mot hoc nganh khoa hoc xa thai ((van nhan) OR (van thanh)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach hoc tap, nghien cuu mot hoc nganh khoa hoc xa thai ((van nhan) OR (van thanh)) van".
• Adding a wildcard symbol may retrieve word variants: thuat sach hoc tap, nghien cuu mot hoc nganh khoa hoc xa thai ((van nhan) OR (van thanh)) van*.