Perhaps you should try some spelling variations:
thuoc cach » thuoc sach, thuc cach, truoc cach
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
thoi tap » toi tap, hoc tap, thoi dai
khoa hoc » hoa hoc
van luan » van quan, van tuan, von luan
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
xa hai » xa thai, xua hai, xa dai

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

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