Perhaps you should try some spelling variations:
van truc » van thuc, van tru, vao truc
cau theo » cau thi, cau tao
qua van » quan van, qua ban, qua san
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
sac ky » sai ky
va cau » van cau, va cac, va dau
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) OR (cac ky)) nang x hoi. hieu qua van truc va hanh va cau theo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sac ky) OR (cac ky)) nang x hoi. hieu qua van truc va hanh va cau theo".
• Adding a wildcard symbol may retrieve word variants: su ((sac ky) OR (cac ky)) nang x hoi. hieu qua van truc va hanh va cau theo*.