Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
sach cau » sach cap, sach dau, sach mau
cau cong » cac cong, cuu cong, cao cong
van hanh » ban hanh, van anh, van ban
dat tren » dat trong, dua tren
su sach » so sach, vu sach
cong xa » cong xay, cong xua, cong ha
hieu va » lieu va, hieu qua
cau xuc » cam xuc, cau luc, cau truc
va cau » van cau, va cac, va dau
vi dat » voi dat, vi dai, va dat

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 cau cong xa hoi. hieu va cau xuc ((van hanh) or (van thanh)) vi dat tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach cau cong xa hoi. hieu va cau xuc ((van hanh) OR (van thanh)) vi dat tren.
• Adding a wildcard symbol may retrieve word variants: su sach cau cong xa hoi. hieu va cau xuc ((van hanh) or (van thanh)) vi dat tren*.