Perhaps you should try some spelling variations:
dung co » dung cong, dung cua
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
cua tre » cuu tre, cua triet, dua tren
so dac » so dan
tu van » tu va
dac ky » cac ky, dan ky, sac ky
cam tu » cam thu, nam tu, dam tu
ve cam » ve cham, ve cac, va cam
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: so dac ky dang xa hoi. hieu ve cam tu van ((dung co) OR (dung cho)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so dac ky dang xa hoi. hieu ve cam tu van ((dung co) OR (dung cho)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so dac ky dang xa hoi. hieu ve cam tu van ((dung co) OR (dung cho)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: so dac ky dang xa hoi. hieu ve cam tu van ((dung co) OR (dung cho)) ((cua tre) or (cua te))*.