Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
hanh va » hang va, hanh vi
va cam » va cham, va cac, va cao
va va » va van, va vua, va vai
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty hang xa hoi. hieu va cam ((xuc van) or (duc van)) hanh va va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty hang xa hoi. hieu va cam ((xuc van) OR (duc van)) hanh va va thiet.
• Adding a wildcard symbol may retrieve word variants: su sach ty hang xa hoi. hieu va cam ((xuc van) or (duc van)) hanh va va thiet*.