Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc su hoan snippets" » "toc su code snippets", "toc su han snippets", "toc vu hoan snippets", "toc thu hoan snippets", "hoc su hoan snippets", "toc pu hoan snippets", "tac su hoan 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 su hoan 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 su hoan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( toc su hoan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc su hoan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.