Perhaps you should try some spelling variations:
thien van » thi van
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
luc van » luoc van, luu van, luc va
duc van » duc va, duc tan, duc manh
hanh di » hanh de, hang di, danh di
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang xa hoi. thien van hac ((luc van) or (duc van)) ((hanh di) OR (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. thien van hac ((luc van) OR (duc van)) ((hanh di) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. thien van hac ((luc van) or (duc van)) ((hanh di) OR (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. thien van hac ((luc van) or (duc van)) ((hanh di) OR (hanh vi)) cua tre*.