Perhaps you should try some spelling variations:
tham loc » tham nuoc, cham soc, hau loc
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cua triet, dua tren
va danh » va dinh, va dan, dia danh
cuu tre » cau tren, cau treo
va hanh » van hanh, va thanh, ban hanh
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua

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 tham loc ((va hanh) or (va danh)) vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang xa hoi. hieu va tham loc ((va hanh) OR (va danh)) vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. hieu va tham loc ((va hanh) or (va danh)) vi ((cua tre) or (cuu tre))*.