Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu van
sach ha » sach nha, sach han, sach xa
xuc va » duc va, tuc va, luc va
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: tu ((sach ha) or (sach y)) nang cao hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ha) OR (sach y)) nang cao hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ha) or (sach y)) nang cao hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ha) or (sach y)) nang cao hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vai cua te*.