Perhaps you should try some spelling variations:
su sach » so sach
vu sach » vu bach, vu khach
xang xa » lang xa, mang xa, ang xa
hanh di » hanh vi, hanh de, danh di
hang di » hang doi, hang vi, hang dien
cua tre » cua te, cuu tre, cua triet
va dau » va dao
tu van » tu va

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) or (vu sach)) ty xang xa hoi. lieu va dau tu van ((hanh di) or (hang di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ty xang xa hoi. lieu va dau tu van ((hanh di) OR (hang di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ty xang xa hoi. lieu va dau tu van ((hanh di) or (hang di)) cua tre*.