Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi tinh doi snippets" » "doi tinh code snippets", "doi trinh doi snippets", "hoi tinh doi snippets", "don tinh doi snippets", "doi trinh doc snippets", "doi trinh do snippets", "doi tinh hoc 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 tinh doi 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 tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi tinh doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tinh doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.