Perhaps you should try some spelling variations:
chung hoc » trung hoc, dung hoc, hung hoa
toc sach » hoc sach, doc sach, thuoc sach
chon hoc » cho hoc, chon loc, chong doc
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
cac xuc » cac nuoc, chat xuc, cac cuoc
cua cau » cua cac, cua chu, cua cay
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty nang ((chon hoc) OR (chung hoc)). lieu va ((cac xuc) or (cam xuc)) van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang ((chon hoc) OR (chung hoc)). lieu va ((cac xuc) OR (cam xuc)) van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty nang ((chon hoc) OR (chung hoc)). lieu va ((cac xuc) or (cam xuc)) van hanh vi cua cau*".