Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
dung tren » dung trong, dung trung
cham luc » cham soc, nhan luc, cham cuu
sang tao » hang tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
cua tec » cua tuc, cua toc, cua viec
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
cua te » cua tu
luc va » duc va, tuc va, loc va

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 sang tao hoi. hieu ve cham luc va thanh lap ((dung tren) or (((cua te) or (cua tec))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ve cham luc va thanh lap ((dung tren) OR (((cua te) OR (cua tec)))).
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. hieu ve cham luc va thanh lap ((dung tren) or (((cua te) or (cua tec))))*.