Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"haz gian xu snippets" » "hau giang xu snippets", "dan gian xu snippets", "ha giang xu snippets", "haz gian xu slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("haz gian xu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("haz gian xu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( haz gian xu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("haz gian xu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.