Perhaps you should try some spelling variations:
lanh manh » lanh tranh, lan anh, van manh
hanh manh » hanh mang, hoang manh, thanh minh
thu sach » thuat sach, thuoc sach, thu hoach
nam thuc » nam thuoc, am thuc, nam thu
ca viet » va viet, co viet, hoa viet
hieu va » lieu va, hieu qua
tu sach » su sach, te sach, tu cach
vai ca » vai cac, vai cua, bai ca
va nam » van nam, ha nam, va nay
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) ky nang x hoi. hieu va nam thuc ((hanh manh) or (lanh manh)) vai ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky nang x hoi. hieu va nam thuc ((hanh manh) OR (lanh manh)) vai ca viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ky nang x hoi. hieu va nam thuc ((hanh manh) or (lanh manh)) vai ca viet".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ky nang x hoi. hieu va nam thuc ((hanh manh) or (lanh manh)) vai ca viet*.