Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi phuc cua snippets" » "doi phuc code snippets", "do phuc cua snippets", "dong phuc cua snippets", "doi thu cua snippets", "doi thuc cua snippets", "doi hoc cua snippets", "doi phuc vu 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: (((("doi phuc cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi phuc cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi phuc cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi phuc cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.