Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can van hoi snippets" » "cac van hoi snippets", "can ban hoi snippets", "tan van hoi snippets", "can van choi snippets", "can van hoai snippets", "can van khoi 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: (((("can van hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can van hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can van hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can van hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.