Perhaps you should try some spelling variations:
phat xuc » chat xuc, phat xuat, phap xu
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, cao hoc, tao hoi
va hanh » van hanh, va thanh, va danh
va tinh » may tinh
co hoi » co hoc, co loi
vi cua » vai cua, di cua
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 ky nang ((cao hoi) OR (co hoi)). lieu va phat xuc ((va hanh) or (va tinh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((cao hoi) OR (co hoi)). lieu va phat xuc ((va hanh) OR (va tinh)) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((cao hoi) OR (co hoi)). lieu va phat xuc ((va hanh) or (va tinh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((cao hoi) OR (co hoi)). lieu va phat xuc ((va hanh) or (va tinh)) vi cua te*.