Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
nang tao » nang cao, sang tao, nang tai
cham luc » cham soc, nhan luc, chat lua
cham cuu » cap cuu, chat cua
ban phan » ban phap, van phan, ban than
phan lap » phan dau
ty nang » ky nang, ty xang, ty hang
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
cua tre » cuu tre, cua triet, dua tren
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: toc sach ty nang tao hoi. hieu ve ((cham luc) or (cham cuu)) ban phan lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang tao hoi. hieu ve ((cham luc) OR (cham cuu)) ban phan lap ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang tao hoi. hieu ve ((cham luc) or (cham cuu)) ban phan lap ((cua tre) or (cua te))*.