Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
dua tren » dung tren
va thanh » gia thanh, ban thanh, va tinh
sang tao » hang tai
cham hoc » cham soc, chat hoc, cham hoi
va cham » va chat, va tham
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach kem
tao hoi » tao khoi, tao boi, tay hoi
sach ty » sach y, sach tu, sach thu
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: tu ((sach ky) OR (sach ty)) sang tao hoi. hieu va cham hoc va thanh lap ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach ty)) sang tao hoi. hieu va cham hoc va thanh lap ((dua tren) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach ty)) sang tao hoi. hieu va cham hoc va thanh lap ((dua tren) or (cua te))*".