Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc hanh cap snippets" » "luc canh cap snippets", "luu hanh cap snippets", "duc hanh cap snippets", "luc hanh cac snippets", "luc hanh cat snippets", "luc hanh cad 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: (((("luc hanh 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: (((("luc hanh cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc hanh cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc hanh cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.