Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
va chai » va cai, va chat, va cham
vu sach » vu bach, su sach, vu khach
ty nang » ky nang, ty hang, ly nang
cua tre » cua te, cuu tre, cua triet
cuc va » chuc va, duc va, cu va
cuu va » cuu van, cuu ve
ve cua » le cua, de cua, te cua

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