Perhaps you should try some spelling variations:
vat hanh » vat thanh, van hanh, va hanh
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
hanh di » hanh vi, hanh de, hang di
y nang » ky nang, ly nang, v nang
ve cai » va cai, ve cac, ve tai
di cau » da cau, diem cau
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu ((ve cai) or (ve cham)) thuc vat hanh di cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang x hoi. hieu ((ve cai) OR (ve cham)) thuc vat hanh di cau treo.
• Adding a wildcard symbol may retrieve word variants: su sach y nang x hoi. hieu ((ve cai) or (ve cham)) thuc vat hanh di cau treo*.