Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
dang de » dang deo, dung de, dang do
cua tre » cua te, cuu tre, cua triet
te cac » te cao, de cac, he cac
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
de cua » le cua, te cua, dieu cua

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) OR (tu cac)) ky nang x ho. hieu ve cac ((luc va) or (truc va)) dang de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (tu cac)) ky nang x ho. hieu ve cac ((luc va) OR (truc va)) dang de cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (tu cac)) ky nang x ho. hieu ve cac ((luc va) or (truc va)) dang de cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (tu cac)) ky nang x ho. hieu ve cac ((luc va) or (truc va)) dang de cua tre*.