Perhaps you should try some spelling variations:
dung tren » dung trong, dung trung
thanh lap » thanh san, phan lap, thanh hai
cham luc » cham soc, nhan luc, cham cuu
dang tao » sang tao, nang tao, dang tran
vang tao » sang tao, nang tao, hang tai
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
cua tuc » cua duc, cua tu, cua thuoc
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: su sach ky ((dang tao) OR (vang tao)) hoi. hieu ve cham luc va thanh lap ((dung tren) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((dang tao) OR (vang tao)) hoi. hieu ve cham luc va thanh lap ((dung tren) OR (cua tuc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((dang tao) OR (vang tao)) hoi. hieu ve cham luc va thanh lap ((dung tren) or (cua tuc))".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((dang tao) OR (vang tao)) hoi. hieu ve cham luc va thanh lap ((dung tren) or (cua tuc))*.