Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
dung tren » dung trong, dung trung
tang tao » sang tao, tang tai, nang tao
cham luc » cham soc, nhan luc, cham cuu
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
cua tuc » cua duc, cua tu, cua thuoc
y tang » ky tang, 6 tang, 7 tang
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 y tang tao boi. 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 y tang tao boi. hieu ve cham luc va thanh lap ((dung tren) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: su sach y tang tao boi. hieu ve cham luc va thanh lap ((dung tren) or (cua tuc))*.