Perhaps you should try some spelling variations:
dang xay » dang van, van xay
van hanh » van thanh, ban hanh, van anh
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
cac loc » cac lop, cac toc, cac hoc
loc van » luoc van, hoc van, lo van
cua tre » cuu tre, cua triet, dua tren
tu van » tu 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: tu van ky dang xay hoi. hieu va cac loc van hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky dang xay hoi. hieu va cac loc van hanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu van ky dang xay hoi. hieu va cac loc van hanh vi ((cua tre) or (cua te))*.