Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
qua cam » qua cham, qua cac, qua cai
qua ca » qua cac, qua cua, qua cai
sac ky » cac ky, sai ky
va cau » van cau, va cac, va dau
su sac » su sach, su cac, su xac
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 sac ky nang x hoi. hieu ((qua cam) or (qua ca)) thuc ((va hanh) or (va danh)) va cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang x hoi. hieu ((qua cam) OR (qua ca)) thuc ((va hanh) OR (va danh)) va cau tren.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x hoi. hieu ((qua cam) or (qua ca)) thuc ((va hanh) or (va danh)) va cau tren*.