Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
thuc van » thuc vat, thuc dan, thuc va
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
may hoi » may thoi, tay hoi, mai hoi
y mang » cay mang
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cai, ve cau
vi cuu » vi luu, vinh cuu
ve cac » va cac, vien cac

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 mang may hoi. hieu ((((ve cam) or (ve cac))) or (va cam)) thuc van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y mang may hoi. hieu ((((ve cam) OR (ve cac))) OR (va cam)) thuc van hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sach y mang may hoi. hieu ((((ve cam) or (ve cac))) or (va cam)) thuc van hanh vi cuu tre*.