Perhaps you should try some spelling variations:
su sach » so sach, vu sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
dinh du » dinh duc, dinh tu, dinh dung
dinh cu » dinh cuu, dinh chuc, dinh chau
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
cua te » cua tu

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 nang) or (ky nang)) xa hoi. hieu ve cam luc va ((dinh du) OR (dinh cu)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ky nang)) xa hoi. hieu ve cam luc va ((dinh du) OR (dinh cu)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam luc va ((dinh du) OR (dinh cu)) cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam luc va ((dinh du) OR (dinh cu)) cua te*.