Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
tinh le » thinh le, trinh le, dinh le
chuc va » thuc va, thuc vat
va chai » va cai, va chat, va cham
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cuu tre » cua tre, cau tren, cau treo
cuc va » duc va, cuu va, cu va
le cuu » le cua, le huu, le cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((ty nang) or (ty hang)) xa hoi. lieu va chai ((cuc va) OR (chuc va)) tinh le cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ty nang) OR (ty hang)) xa hoi. lieu va chai ((cuc va) OR (chuc va)) tinh le cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty nang) or (ty hang)) xa hoi. lieu va chai ((cuc va) OR (chuc va)) tinh le cuu tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty nang) or (ty hang)) xa hoi. lieu va chai ((cuc va) OR (chuc va)) tinh le cuu tre*.