Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap hoc do snippets" » "giup hoc do snippets", "giap hoat do snippets", "phap hoc do snippets", "giap hoc doi snippets", "giap hoc co snippets", "giap hoc bo 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: (((("giap hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap hoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap hoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.