Perhaps you should try some spelling variations:
thien van » thi van
vu khach » vu khanh, vu khac, vay khach
hac phuc » khac phuc, hanh phuc, khao phuc
phuc cac » phuc cam, phuc ca, phuc cham
vu sach » vu bach, su sach
van hac » van hoc, van ha, van hai
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 » ly 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) or (vu khach)) ((y nang) OR (ky nang)) xa hoi. thien van hac phuc cac dan vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) ((y nang) OR (ky nang)) xa hoi. thien van hac phuc cac dan vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (vu khach)) ((y nang) OR (ky nang)) xa hoi. thien van hac phuc cac dan vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu khach)) ((y nang) OR (ky nang)) xa hoi. thien van hac phuc cac dan vai cua tre*.