Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam duc » cao duc, pham duc, nam duoc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cuu tre, cua triet, dua tren
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 cac ky lang xa hoi. hieu va ((cam duc) or (cam xuc)) va danh vi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang xa hoi. hieu va ((cam duc) OR (cam xuc)) va danh vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky lang xa hoi. hieu va ((cam duc) or (cam xuc)) va danh vi ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. hieu va ((cam duc) or (cam xuc)) va danh vi ((cua tre) OR (cua te))*.