Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai
ve cham » va cham, ve chat, vu cham
duc van » duc va, duc tan, duc manh
cuc tre » duc tre, cua tre, cuu tre
nang o » nang co, nang ho, nang ro
ve cam » ve cac, va cam, ve cai
o lai » o lao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang o lai. hieu ((ve cam) OR (ve cham)) duc van hanh tai cuc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang o lai. hieu ((ve cam) OR (ve cham)) duc van hanh tai cuc tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang o lai. hieu ((ve cam) OR (ve cham)) duc van hanh tai cuc tre*.