Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua viet » ca viet, hoa viet, cua vat
thu sach » thuat sach, thuoc sach, thu hoach
cau tuc » cau truc, cau tu, cau phuc
vai cua » dai cua, hai cua, lai cua
cau luc » cau truc, cau phuc
tu sach » su sach, te sach, tu cach
may hoa » may khoa, ma hoa, day hoa
ky mang » ky nang, ke mang, ky dang

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 (thu sach)) ky mang may hoa. lieu va ((cau tuc) OR (cau luc)) gia thanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky mang may hoa. lieu va ((cau tuc) OR (cau luc)) gia thanh vai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky mang may hoa. lieu va ((cau tuc) OR (cau luc)) gia thanh vai cua viet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky mang may hoa. lieu va ((cau tuc) OR (cau luc)) gia thanh vai cua viet*.