Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
xa thanh » va thanh, ha thanh, ta thanh
nam thuc » nam thuoc, am thuc, nam tu
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, su sach, tu cach
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa
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) OR (te sach)) ky sang ma hoi. hieu van ((nam thuc) or (nam thu)) xa thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky sang ma hoi. hieu van ((nam thuc) OR (nam thu)) xa thanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) ky sang ma hoi. hieu van ((nam thuc) or (nam thu)) xa thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) ky sang ma hoi. hieu van ((nam thuc) or (nam thu)) xa thanh vai cua te*.