Perhaps you should try some spelling variations:
chua tivi » chua tinh, chua tri
hoc sach » hoc sinh, hoc cac, hoc anh
hieu cao » chieu cao, hieu cac, hieu ca
chat hoc » chat hoa, chat thom, cho hoc
mai hoi » mai khoi, dai hoi, mai doi
lai hoi » dai hoi, lai hoa, lai roi
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va chua » vua chua, ca chua, va chu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cac) or (hoc sach)) ky nang ((mai hoi) OR (lai hoi)). hieu cao chat hoc va hanh va chua tivi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (hoc sach)) ky nang ((mai hoi) OR (lai hoi)). hieu cao chat hoc va hanh va chua tivi.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (hoc sach)) ky nang ((mai hoi) OR (lai hoi)). hieu cao chat hoc va hanh va chua tivi".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (hoc sach)) ky nang ((mai hoi) OR (lai hoi)). hieu cao chat hoc va hanh va chua tivi*.