Perhaps you should try some spelling variations:
phat xuc » chat xuc, phat xuat, phap xu
va thanh » gia thanh, ban thanh, le thanh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cao hoi » cau hoi, co hoi, cao hoc
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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) OR (su sach)) ky nang cao hoi. lieu va phat xuc ((va thanh) or (va tinh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang cao hoi. lieu va phat xuc ((va thanh) OR (va tinh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang cao hoi. lieu va phat xuc ((va thanh) or (va tinh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky nang cao hoi. lieu va phat xuc ((va thanh) or (va tinh)) vi cua tre*.