Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
danh vi » hanh vi, dinh vi, danh va
danh di » danh du, xanh di, danh dien
y lang » o lang, _ lang, tay lang
cua te » cua tu

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 hoi. ((hieu ve) or (hieu qua)) cam duc va ((danh vi) or (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang xa hoi. ((hieu ve) OR (hieu qua)) cam duc va ((danh vi) OR (danh di)) cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y lang xa hoi. ((hieu ve) or (hieu qua)) cam duc va ((danh vi) or (danh di)) cua te*.