Perhaps you should try some spelling variations:
van cham » van chat, van tham, va cham
cham luc » cham soc, nhan luc, cham cuu
hang lap » sang lap, hang la, hang tap
xang tao » sang tao, nang tao, vang tao
ban hang » ngan hang
hieu van » hieu va, thien van, lieu va
cua tre » cuu tre, cua triet, dua tren
luc ban » duc ban, cuc ban, luc bat
tu sach » thu sach, su sach, tu cach
tao hoi » tao khoi, tao boi, tay hoi
te sach » toc 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: ((tu sach) OR (te sach)) ty xang tao hoi. hieu van cham luc ban hang lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ty xang tao hoi. hieu van cham luc ban hang lap ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) ty xang tao hoi. hieu van cham luc ban hang lap ((cua tre) or (cua te))*".