Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
van hanh » van thanh, ban hanh, van anh
cuu tre » cau tren, cau treo
cac vuc » cac nuoc, cac vung, cac cuoc
cua tre » cua te, cua triet, dua tren
nang ro » nang co, nang ho, nang ra
hieu ve » hieu va, hieu van
vuc van » duc van, luc van, thuc van
tu bac » tu ban, tu cac, tu bat
ro lai » o lai, ho lai, ru lai
tu san » thu san, tu ban, tu can
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu bac) or (tu san)) ky nang ro lai. hieu ve cac vuc van hanh thai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu bac) OR (tu san)) ky nang ro lai. hieu ve cac vuc van hanh thai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((tu bac) or (tu san)) ky nang ro lai. hieu ve cac vuc van hanh thai ((cua tre) or (cuu tre))*.