Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac pham can snippets" » "tac pham can snippets", "cac ham can snippets", "cac phan can snippets", "cac pham van snippets", "cac pham lan snippets", "cac pham ca 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: (((("cac pham can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac pham can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac pham can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac pham can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.