Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che phu ve snippets" » "cho phu ve snippets", "che pham ve snippets", "chau phu ve snippets", "che phu va snippets", "che phu vu 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 phu ve 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 phu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che phu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che phu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.