Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham mo canh snippets" » "phap mo canh snippets", "pham ma canh snippets", "pham o canh snippets", "pham bo canh snippets", "pham do canh snippets", "pham mo danh 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: (((("pham mo canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham mo canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham mo canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham mo canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.