Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dinh van » sinh vat
tu sach » thu sach, su sach, te sach
van cuu » van cau, van chu, van cu
va dinh » van dinh, va kinh, va tinh
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((lang xa) or (nang x)) hoi. ((hieu ve) or (hieu van)) cam xuc va dinh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((lang xa) OR (nang x)) hoi. ((hieu ve) OR (hieu van)) cam xuc va dinh van cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((lang xa) or (nang x)) hoi. ((hieu ve) or (hieu van)) cam xuc va dinh van cuu tre*.