Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
cao hoi » cau hoi, co hoi, cao hoc
va hanh » van hanh, va danh, ban hanh
hai cua » dai cua, hoi cua, lai cua
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang cao hoi. hieu ((va thanh) or (ban thanh)) duc va hanh ((hai cua) OR (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang cao hoi. hieu ((va thanh) OR (ban thanh)) duc va hanh ((hai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang cao hoi. hieu ((va thanh) or (ban thanh)) duc va hanh ((hai cua) OR (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang cao hoi. hieu ((va thanh) or (ban thanh)) duc va hanh ((hai cua) OR (thai cua)) tre*.