Perhaps you should try some spelling variations:
thi nang » thi cong, ki nang, thi hanh
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
thi van » thi lan, thi hanh
vuc van » duc van, luc van, thuc van
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
so sac » so sach, so dac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky ((nang xa) or (lang xa)) hoi. ((thi van) or (thi nang)) bac vuc van hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky ((nang xa) OR (lang xa)) hoi. ((thi van) OR (thi nang)) bac vuc van hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: so sac ky ((nang xa) or (lang xa)) hoi. ((thi van) or (thi nang)) bac vuc van hanh tai cua tre*.