Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phac do canh snippets" » "khac do canh snippets", "pham do canh snippets", "phan do canh snippets", "phac doi canh snippets", "phac do sanh snippets", "phac do 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: (((("phac do 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: (((("phac do canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phac do canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phac do canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.