Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dac chi cua snippets" » "dac chi code snippets", "dac cho cua snippets", "dau chi cua snippets", "dich chi cua snippets", "dac chi cuc snippets", "dac khi cua snippets", "dac cuoi 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: (((("dac chi 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: (((("dac chi cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dac chi cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac chi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.