Perhaps you should try some spelling variations:
hieu cao » chieu cao, hieu cac, hieu ca
ca chua » ca cua, sua chua
va chua » vua chua, va chu, a chua
thu sai » thu hai, thu tai, thu san
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
sai ky » sac ky
luc va » duc va, tuc va, loc va
xuc va » duc va, tuc va, xac va
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sai ky tang ma hoi. hieu cao chat ((xuc va) OR (luc va)) thanh ((va chua) or (ca chua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky tang ma hoi. hieu cao chat ((xuc va) OR (luc va)) thanh ((va chua) OR (ca chua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky tang ma hoi. hieu cao chat ((xuc va) OR (luc va)) thanh ((va chua) or (ca chua)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sai ky tang ma hoi. hieu cao chat ((xuc va) OR (luc va)) thanh ((va chua) or (ca chua)) tre*.