Perhaps you should try some spelling variations:
tham loc » tham nuoc, cham soc, hau loc
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va
de cac » den cac, ve cac, de cai
vi cua » vai cua, di cua
loc va » hoc va, luc va
cua te » cua tu
te cao » te bao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((de cac) or (te cao)) ky lang xa hoi. ((hieu va) OR (hieu qua)) tham loc va thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((de cac) OR (te cao)) ky lang xa hoi. ((hieu va) OR (hieu qua)) tham loc va thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((de cac) or (te cao)) ky lang xa hoi. ((hieu va) OR (hieu qua)) tham loc va thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((de cac) or (te cao)) ky lang xa hoi. ((hieu va) OR (hieu qua)) tham loc va thanh vi cua te*.