Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
nghien cau » nghien cuu, nghiep cau, nghiep cay
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
danh nhan » doanh nhan, thanh nhan, benh nhan
sach hoi » sach doi, cach thoi, hoach hoi
sach moi » sach doi, bach mai, sach bai
hai danh » thai danh, hai anh, hai dang
nhan van » nhan dan, nhan va, phan van
cau hoa » cau hoi
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: thuat ((sach hoi) OR (sach moi)) trac, nghien cau hoa hoc nganh khung hoc ma hai danh nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach hoi) OR (sach moi)) trac, nghien cau hoa hoc nganh khung hoc ma hai danh nhan van".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach hoi) OR (sach moi)) trac, nghien cau hoa hoc nganh khung hoc ma hai danh nhan van*.