Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
cua te » cua tu

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 xa) OR (nang x)) hoi. hieu va cam xuc va hanh vai ((cua viet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky ((nang xa) OR (nang x)) hoi. hieu va cam xuc va hanh vai ((cua viet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky ((nang xa) OR (nang x)) hoi. hieu va cam xuc va hanh vai ((cua viet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuat sac ky ((nang xa) OR (nang x)) hoi. hieu va cam xuc va hanh vai ((cua viet) or (cua te))*.