Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cau tre » cau tren, cau treo, cau tra
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
va cau » van cau, va cac, va dau
x hoi » xa hoi, o hoi, 5 hoi

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 ky) OR (sach y)) nang ((x hoi) or (x ho)). hieu ve cam tuc va danh va cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach ky) OR (sach y)) nang ((x hoi) OR (x ho)). hieu ve cam tuc va danh va cau tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ky) OR (sach y)) nang ((x hoi) or (x ho)). hieu ve cam tuc va danh va cau tre*".