Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh lai » hanh lam, hanh tai, thanh lap
cau theo » cau thi, cau tao
nang ma » tang ma, sang ma, nang cao
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, mang xa
lai cau » lai chau, lai cam, loi cau
xuc va » duc va, tuc va, luc va
va cam » va cac, va cao, va cai

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 ((nang xa) or (nang ma)) hoi. hieu ((va cam) OR (va cham)) xuc va hanh lai cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky ((nang xa) OR (nang ma)) hoi. hieu ((va cam) OR (va cham)) xuc va hanh lai cau theo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky ((nang xa) or (nang ma)) hoi. hieu ((va cam) OR (va cham)) xuc va hanh lai cau theo".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky ((nang xa) or (nang ma)) hoi. hieu ((va cam) OR (va cham)) xuc va hanh lai cau theo*.