Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong duc cap snippets" » "dang duc cap snippets", "ton duc cap snippets", "hong suc cap snippets", "hong duc cac snippets", "hong duc phap 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: (((("hong duc cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong duc cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong duc cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong duc cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.