Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cham cua » chat cua, cham cuu, ham cua
cua tre » cua te, cua triet, dua tren
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
va cham » va chat, va tham
hieu va » lieu va, hieu qua
hang xa » hoang xa, hang va, hang ca
ly hang » ly quang
cuu tre » cau tren, cau treo

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 hang xa hoi. hieu va cham cua ban ((thanh dai) or (doanh tai)) ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly hang xa hoi. hieu va cham cua ban ((thanh dai) OR (doanh tai)) ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly hang xa hoi. hieu va cham cua ban ((thanh dai) or (doanh tai)) ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach ly hang xa hoi. hieu va cham cua ban ((thanh dai) or (doanh tai)) ((cua tre) OR (cuu tre))*.