Perhaps you should try some spelling variations:
thi nang » thi cong, ki nang, thi hanh
phan dua » phan duc, phan duy, phan quan
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
tu sang » thu sang, tu san, tu lang
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh
dua ban » dia ban, cua ban, qua ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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

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