Perhaps you should try some spelling variations:
thi nang » thi cong, ki nang, thi hanh
phan duc » pham duc, phan dau, tran duc
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
tu sai » tu bai, tu san, tu cai
sai ky » sac ky

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. thi nang ((phan duc) OR (phan tu)) ban hanh vai ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. thi nang ((phan duc) OR (phan tu)) ban hanh vai ((cua tre) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang xa hoi. thi nang ((phan duc) OR (phan tu)) ban hanh vai ((cua tre) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang xa hoi. thi nang ((phan duc) OR (phan tu)) ban hanh vai ((cua tre) or (cua viet))*.