Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc pham cuc snippets" » "toc pham code snippets", "tac pham cuc snippets", "toc cham cuc snippets", "toi pham cuc snippets", "toc pham chuc snippets", "toc pham duc snippets", "toc pham cua snippets"
"python using java snippets" » "python using data 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: (((("toc pham cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc pham cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( toc pham cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc pham cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.