Perhaps you should try some spelling variations:
su sach » so sach, vu sach
cua tre » cua te, cua triet, dua tren
danh va » doanh va, hanh va, anh va
cuu tre » cau tren, cau treo
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
tuc va » thuc va, truc va, duc va
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach o lang xa hoi. hieu va tham ((tuc va) or (tuc xa)) danh va ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach o lang xa hoi. hieu va tham ((tuc va) OR (tuc xa)) danh va ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach o lang xa hoi. hieu va tham ((tuc va) or (tuc xa)) danh va ((cua tre) OR (cuu tre))*".