Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"data nuoc de snippets" » "data nuoc code snippets", "dat nuoc de snippets", "dat duoc de snippets", "dau nuoc de snippets", "data buoc de snippets", "data ngoc de snippets", "data nuoc ve 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: (((("data nuoc de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data nuoc de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( data nuoc de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data nuoc de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.