Perhaps you should try some spelling variations:
sang tao » hang tai
toan lap » toan tap, toan lao, thanh lap
than lap » thanh lap, phan lap, thao lap
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
cua tre » cuu tre, cua triet, dua tren
luc ban » duc ban, cuc ban, luc bat
sach ty » sach y, sach tu, sach thu
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
ty sang » ty xang, ty hang, duy sang
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: te sach ty sang tao hoi. hieu ve cham luc ban ((than lap) OR (toan lap)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty sang tao hoi. hieu ve cham luc ban ((than lap) OR (toan lap)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty sang tao hoi. hieu ve cham luc ban ((than lap) OR (toan lap)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ty sang tao hoi. hieu ve cham luc ban ((than lap) OR (toan lap)) ((cua tre) or (cua te))*.