Perhaps you should try some spelling variations:
su sach » so sach
thi cuu » thi cuc, thi huu, thi cu
dau thi » cau thi, dan thi, dao thi
truc va » thuc va, thuc vat, trung va
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
vu sach » vu bach, vu khach
cuu tre » cua tre, cau tren, cau treo
tuc va » thuc va, tuc xa, duc 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)) ky lang xa hoi. lieu va cac ((tuc va) OR (truc va)) dau thi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky lang xa hoi. lieu va cac ((tuc va) OR (truc va)) dau thi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky lang xa hoi. lieu va cac ((tuc va) OR (truc va)) dau thi cuu tre*".