Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
so sang » so sanh, so lang, so bang
so dang » su dang, so dan, so dung
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cac dac » cac dan, cac dai, cac bac
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

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