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