Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thanh vai » thanh hai, thanh tai, thanh oai
sang tao » hang tai
hieu van » hieu va, thien van, lieu va
qua ban » cua ban, qua quan
van cua » vang cua, ban cua, dan cua
cua qua » cua quan, cua rua, cuu qua
sach ky » sach y, sach ty, sach kem
tao hoa » bao hoa, tao hoi, tao ho
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky

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) or (sac ky)) sang tao hoa. hieu van cua qua ban ((thanh vai) OR (thanh van)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) sang tao hoa. hieu van cua qua ban ((thanh vai) OR (thanh van)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sac ky)) sang tao hoa. hieu van cua qua ban ((thanh vai) OR (thanh van)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) sang tao hoa. hieu van cua qua ban ((thanh vai) OR (thanh van)) cuu tre*.