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