Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
hang di » hang doi, hang vi, hang dien
hanh de » hanh ve, hanh kem
su viet » so viet
cso hai » co hai, cho hai, cao khai
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
so hai » son hai, su hai, so ha
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sac ky nang ((so hai) or (cso hai)). lieu va cam xuc va ((hanh de) or (hang di)) su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky nang ((so hai) OR (cso hai)). lieu va cam xuc va ((hanh de) OR (hang di)) su viet.
• Adding a wildcard symbol may retrieve word variants: thuat sac ky nang ((so hai) or (cso hai)). lieu va cam xuc va ((hanh de) or (hang di)) su viet*.