Perhaps you should try some spelling variations:
dong cua » dung cua, cong cua, huong cua
su sach » so sach, vu sach
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
qua cam » qua cham, qua cac, qua ca
va dung » van dung, va duong, vat dung
doi cua » dai cua, hoi cua
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: su sach y ((nang xa) or (lang xa)) hoi. hieu qua cam xuc va dung ((doi cua) OR (dong cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (lang xa)) hoi. hieu qua cam xuc va dung ((doi cua) OR (dong cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang xa) or (lang xa)) hoi. hieu qua cam xuc va dung ((doi cua) OR (dong cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) or (lang xa)) hoi. hieu qua cam xuc va dung ((doi cua) OR (dong cua)) tre*.