Perhaps you should try some spelling variations:
chua tre » chua tri, chua trieu, cho tre
thanh va » thanh van, hanh va, thanh ha
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
va chai » va cai, va chat, va cham
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
cuu va » cuu van, cuu ve
cuc va » chuc va, duc va, cu va

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