Perhaps you should try some spelling variations:
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va thanh, va danh
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa

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 ty nang ma hoi. hieu ((va cam) or (ve cac)) tuc va hanh ((tri cua) or (lai chau)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ma hoi. hieu ((va cam) OR (ve cac)) tuc va hanh ((tri cua) OR (lai chau)) triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ma hoi. hieu ((va cam) or (ve cac)) tuc va hanh ((tri cua) or (lai chau)) triet*.