Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
thien van » thi van
danh dau » lanh dao, hang dau, danh tu
danh dai » danh di, danh sai, vanh dai
van chat » cao chat
truc va » thuc va, thuc vat, trung va
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, mang may
cuu tre » cua tre, cau tren, cau treo

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 ma) or (nang cao)) hoi. thien van chat truc va ((danh dai) OR (danh dau)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang ma) OR (nang cao)) hoi. thien van chat truc va ((danh dai) OR (danh dau)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang ma) or (nang cao)) hoi. thien van chat truc va ((danh dai) OR (danh dau)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang ma) or (nang cao)) hoi. thien van chat truc va ((danh dai) OR (danh dau)) cuu tre*.