Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
sang lap » sang tao, sang ma, sang tai
xanh di » danh di, vanh dai, xanh tai
danh vi » hanh vi, dinh vi, danh di
cam duc » cam xuc, cao duc, pham duc
van cam » van nam, van lam, van cau
su sach » vu sach
lap hai » lap tai, lap lai, lap hoat
ky sang » ky nang, ky dang, ky tang
so sach » so sanh, bo sach, co sach
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: ((su sach) OR (so sach)) ky sang lap hai. hieu van cam duc va ((danh vi) or (xanh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky sang lap hai. hieu van cam duc va ((danh vi) OR (xanh di)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky sang lap hai. hieu van cam duc va ((danh vi) or (xanh di)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky sang lap hai. hieu van cam duc va ((danh vi) or (xanh di)) cua te*.