Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
thu hanh » thuc hanh, thu thanh, thuy hanh
thoi tap » toi tap, thoi dai, hoi tai
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
van tuan » van quan, van ban, anh tuan
hai van » thai van, ha van, hai tan
tuan va » toan va, luan va, quan va
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: thu hanh ((thoi tap) OR (hoc tap)), nghien cua cong hoc nganh khoa hoc xa hai van tuan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu hanh ((thoi tap) OR (hoc tap)), nghien cua cong hoc nganh khoa hoc xa hai van tuan va".
• Adding a wildcard symbol may retrieve word variants: thu hanh ((thoi tap) OR (hoc tap)), nghien cua cong hoc nganh khoa hoc xa hai van tuan va*.