Perhaps you should try some spelling variations:
ve chat » va chat, van chat
dinh de » dinh ve, dinh du, dinh le
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ly nang » ly hang, ly vang, ly quang
luc va » duc va, tuc va
loc va » hoc va
de cua » le cua, te cua, dieu cua
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 ((ly nang) or (ky nang)) xa hoi. hieu ve chat ((luc va) OR (loc va)) dinh de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (ky nang)) xa hoi. hieu ve chat ((luc va) OR (loc va)) dinh de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly nang) or (ky nang)) xa hoi. hieu ve chat ((luc va) OR (loc va)) dinh de cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) or (ky nang)) xa hoi. hieu ve chat ((luc va) OR (loc va)) dinh de cua te*.