Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao chu voi snippets" » "chao chu voi snippets", "cao cho voi snippets", "cho chu voi snippets", "cao chua voi snippets", "cao chi voi snippets", "cao chu vi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cao chu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao chu voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao chu voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao chu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.