Perhaps you should try some spelling variations:
thien van » thi van
doc sach » hoc sach, toc sach, nuoc sach
van cham » van chat, van tham, va cham
cham tuc » nham thuc, pham thuc, tham thuc
tinh dat » tinh da, dinh dat, tinh dak
tinh dau » tinh da, trinh dan, trinh dao
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach y nang xa hoi. thien van cham tuc va ((tinh dat) OR (tinh dau)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach y nang xa hoi. thien van cham tuc va ((tinh dat) OR (tinh dau)) cua tre".
• Adding a wildcard symbol may retrieve word variants: doc sach y nang xa hoi. thien van cham tuc va ((tinh dat) OR (tinh dau)) cua tre*.