Perhaps you should try some spelling variations:
cau theo » cau thi, cau tao
cau tren » cu tren, dau tren, ca tren
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
hanh ve » hanh va, hanh kem
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
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: te sac ky nang x hoi. hieu va cam tuc xa ((hanh ve) OR (hanh vi)) ((cau theo) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x hoi. hieu va cam tuc xa ((hanh ve) OR (hanh vi)) ((cau theo) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. hieu va cam tuc xa ((hanh ve) OR (hanh vi)) ((cau theo) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x hoi. hieu va cam tuc xa ((hanh ve) OR (hanh vi)) ((cau theo) or (cau tren))*.