Perhaps you should try some spelling variations:
bat phan » sat phan, vat phan, xuat phan
tao khoi » tao hoi, thao khoa, tao boi
lao khoa » lo khoa, da khoa, ly khoa
phan lap » phan dau
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
ve cham » va cham, ve chat, vu cham
luc bat » suc bat, luc nhat, luat bat
hieu ve » hieu va, hieu van
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 _ sang ((tao khoi) OR (lao khoa)). hieu ve cham luc bat phan lap ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ sang ((tao khoi) OR (lao khoa)). hieu ve cham luc bat phan lap ((cuu tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach _ sang ((tao khoi) OR (lao khoa)). hieu ve cham luc bat phan lap ((cuu tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach _ sang ((tao khoi) OR (lao khoa)). hieu ve cham luc bat phan lap ((cuu tre) or (cua te))*.