Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc nhat de snippets" » "toc nhat code snippets", "hoc nhat de snippets", "tot nhat de snippets", "tuc nhat de snippets", "toc nhat ve snippets", "toc nhat le snippets", "toc chat deo 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 nhat 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: (((("toc nhat de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( toc nhat de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc nhat de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.