Perhaps you should try some spelling variations:
thien van » thi van
chat phuc » thuat phuc, chat huu, chat hoc
vu sach » vu bach, su sach, vu khach
ly nang » ky nang, ly hang, ly vang
dan vai » dan va, dan tai, dan vat
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, v nang, may nang

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 ((y nang) or (ly nang)) xa hoi. thien van ((chat phuc) OR (khac phuc)) cac dan vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((y nang) OR (ly nang)) xa hoi. thien van ((chat phuc) OR (khac phuc)) cac dan vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((y nang) or (ly nang)) xa hoi. thien van ((chat phuc) OR (khac phuc)) cac dan vai cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) or (ly nang)) xa hoi. thien van ((chat phuc) OR (khac phuc)) cac dan vai cua tre*.