Perhaps you should try some spelling variations:
thuat cai » thuat bai, thuat cam, thuat cao
ban hanh » ban hang
dua tren » dung tren
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
hanh va » hang va, hanh vi
cai ky » cao ky, cac ky, cam ky
va cam » va cham, va cac, va cao
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat cai ky ((nang xa) or (lang xa)) hoi. hieu va cam xuc ban hanh va ((dua tren) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat cai ky ((nang xa) OR (lang xa)) hoi. hieu va cam xuc ban hanh va ((dua tren) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: thuat cai ky ((nang xa) or (lang xa)) hoi. hieu va cam xuc ban hanh va ((dua tren) or (cua tu))*.