Perhaps you should try some spelling variations:
su sach » so sach, vu sach
danh du » danh dau, danh tu, dinh du
va danh » va dinh, va dan, va hanh
thuc va » thuc vat, thuc dan, thuc day
van hac » van hoc, van ha, van hai
dan bac » dan ba, van bac, dong bac
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
du cua » duy cua, dau cua, dum cua

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 (te sach)) ky dang xa hoi. hieu ((dan bac) or (van hac)) thuc va danh du cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky dang xa hoi. hieu ((dan bac) OR (van hac)) thuc va danh du cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky dang xa hoi. hieu ((dan bac) or (van hac)) thuc va danh du cua tre*.