Perhaps you should try some spelling variations:
thanh tay » thanh tai, thanh toan, thanh thuy
cau tren » cu tren, dau tren, cau treo
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach ty, sach kem
hanh ve » hanh vi, hanh va, hanh kem
luu van » cuu van, luan van, luu hanh
cam luu » tam luu
tay hoi » tay ho, tao hoi, tay thai
ca tren » cu tren, la tren, co tren
va cam » va cham, va cac, va cao

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 y)) thanh tay hoi. lieu va cam luu van hanh ve ((cau tren) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) thanh tay hoi. lieu va cam luu van hanh ve ((cau tren) OR (ca tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) thanh tay hoi. lieu va cam luu van hanh ve ((cau tren) or (ca tren))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) thanh tay hoi. lieu va cam luu van hanh ve ((cau tren) or (ca tren))*.