Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
van cam » van nam, van lam, van dam
van cau » van dau, van hau, van chat
xuc van » duc van, luc van, vuc van
vu sach » vu bach, su sach, vu khach
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua cu

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 (vu sach)) ky tang ma hoi. hieu ((van cam) OR (van cau)) xuc van thanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (vu sach)) ky tang ma hoi. hieu ((van cam) OR (van cau)) xuc van thanh dai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (vu sach)) ky tang ma hoi. hieu ((van cam) OR (van cau)) xuc van thanh dai cua tu".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (vu sach)) ky tang ma hoi. hieu ((van cam) OR (van cau)) xuc van thanh dai cua tu*.