Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
dung tren » dung trong, dung trung
cham luc » nhan luc, cham cuu, chat lua
dang tay » dang xay, dung tay, dan tay
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
cua tuc » cua duc, cua tu, cua thuoc
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
tay hoi » tay ho, tao hoi, tay thai
ky dang » ky nang, ky danh

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