Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
chat truc » cau truc, chat xuc
hieu van » hieu va, thien van, lieu va
van chat » cao chat
va hanh » van hanh, va thanh, ban hanh
cu tren » tu tren, dua tren
cuu tre » cua tre, cau tren, cau treo
va danh » va dinh, va dan, dia danh
sac ky » cac ky, sai ky

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 x ho. hieu van chat truc ((va danh) OR (va hanh)) dien ((cu tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky nang x ho. hieu van chat truc ((va danh) OR (va hanh)) dien ((cu tren) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky nang x ho. hieu van chat truc ((va danh) OR (va hanh)) dien ((cu tren) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: thuat sac ky nang x ho. hieu van chat truc ((va danh) OR (va hanh)) dien ((cu tren) or (cuu tre))*.