Perhaps you should try some spelling variations:
sach truc » cach thuc, sach tren, sach thu
truc nang » truc nano, tru nang, truc trang
khoa hoc » hoa hoc
cac cuoc » cac nuoc, ca cuoc, cac quoc
cuoc van » cuoi van, luoc van, quoc van
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
cao hoc » co hoc, cho hoc, chat hoc
hieu va » hieu qua
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: te sach truc nang ((cao hoc) or (khoa hoc)). ((hieu va) OR (lieu va)) cac cuoc van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach truc nang ((cao hoc) OR (khoa hoc)). ((hieu va) OR (lieu va)) cac cuoc van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach truc nang ((cao hoc) or (khoa hoc)). ((hieu va) OR (lieu va)) cac cuoc van hanh vi cua cau*".