Perhaps you should try some spelling variations:
hoc nhanh » hoc phan
thu tich » chu tich, chu thich, thue tinh
tich hoc » tinh hoc, dich hoc, tich hop
cuu mot » cua mot, cuu mo, huu mot
hai van » thai van, ha van, hai tan
ban san » ban soan, ban dan, ban can
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 tich hoc tap, nghien cuu mot ((hoc nganh) OR (hoc nhanh)) hoa hoc xa hai van ban san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu tich hoc tap, nghien cuu mot ((hoc nganh) OR (hoc nhanh)) hoa hoc xa hai van ban san".
• Adding a wildcard symbol may retrieve word variants: thu tich hoc tap, nghien cuu mot ((hoc nganh) OR (hoc nhanh)) hoa hoc xa hai van ban san*.