Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
so sach » so sanh, bo sach, co sach
lang xa » lang ha, dang xay, lang van
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
va dinh » van dinh, va kinh, vu dinh
va tinh » may tinh
doi cua » dai cua, hoi cua
y lang » o lang, _ lang, tay lang
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y lang xa hoi. hieu van cau tuc ((va dinh) or (va tinh)) doi cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y lang xa hoi. hieu van cau tuc ((va dinh) OR (va tinh)) doi cua su.
• Adding a wildcard symbol may retrieve word variants: so sach y lang xa hoi. hieu van cau tuc ((va dinh) or (va tinh)) doi cua su*.