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