Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap hoi so snippets" » "gian hoi so snippets", "giap voi so snippets", "giap hoat so snippets", "giap hoi co snippets", "giap hoi o snippets", "giap hai so 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 hoi so 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 hoi so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap hoi so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap hoi so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.