Perhaps you should try some spelling variations:
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
van cam » van lam, van cau, van dam
duc ban » duc tan, duc van, dua ban
doi cua » dai cua, hoi cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
di cua » dai cua, de cua, do cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang xa hoi. hieu ((van cam) or (van nam)) duc ban hanh ((di cua) OR (doi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. hieu ((van cam) OR (van nam)) duc ban hanh ((di cua) OR (doi cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang xa hoi. hieu ((van cam) or (van nam)) duc ban hanh ((di cua) OR (doi cua)) te".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang xa hoi. hieu ((van cam) or (van nam)) duc ban hanh ((di cua) OR (doi cua)) te*.