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

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) OR (cham soc)) va thanh lap ((dung tren) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ve ((cham luc) OR (cham soc)) va thanh lap ((dung tren) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang tao hoi. hieu ve ((cham luc) OR (cham soc)) va thanh lap ((dung tren) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. hieu ve ((cham luc) OR (cham soc)) va thanh lap ((dung tren) or (cua tu))*.