Perhaps you should try some spelling variations:
dung doi » huong doi, dung tai, dung co
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua ca, qua cay
qua cai » qua hai, qua ca, quan cau
qua cac » cua cac
va dung » van dung, va duong, vat dung
doi cua » dai cua, hoi cua
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
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: su sach y nang xa hoi. hieu ((((qua cam) OR (qua cai))) or (qua cac)) xuc va dung doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((((qua cam) OR (qua cai))) OR (qua cac)) xuc va dung doi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((((qua cam) OR (qua cai))) or (qua cac)) xuc va dung doi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((((qua cam) OR (qua cai))) or (qua cac)) xuc va dung doi cua te*.