Perhaps you should try some spelling variations:
te sach » toc sach
ty hang » ly hang, ty xang, thi hang
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
danh du » danh dau, danh tu, dinh du
cua tre » cua te, cuu tre, cua triet
luc va » tuc va, loc va
du cua » duy cua, dau cua, dum cua

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 ((ty hang) or (ky nang)) xa hoi. hieu va tham ((luc va) or (duc va)) danh du cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (ky nang)) xa hoi. hieu va tham ((luc va) OR (duc va)) danh du cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty hang) or (ky nang)) xa hoi. hieu va tham ((luc va) or (duc va)) danh du cua tre*.