Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc van choi snippets" » "hoc van chi snippets", "hoc van cho snippets", "hoc san choi snippets", "hoc dan choi snippets", "hoc va choi snippets", "hoc vat choi 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: (((("hoc van choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc van choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc van choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc van choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.