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