Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
cac dac » cac dan, cac dai, cac bac
so sang » so sanh, so lang, so bang
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
so dang » su dang, so dan, so dung
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sang) or (so dang)) ky lang ha hoi. hieu va cac dac ((va danh) or (van hanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sang) OR (so dang)) ky lang ha hoi. hieu va cac dac ((va danh) OR (van hanh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sang) or (so dang)) ky lang ha hoi. hieu va cac dac ((va danh) or (van hanh)) vi cua tre*.