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