Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh cao toc snippets" » "danh cao code snippets", "doanh cao toc snippets", "danh cho toc snippets", "danh ca toc snippets", "danh cac toc snippets", "danh cao hoc snippets", "danh cao ngoc 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: (((("python using java snippets") or ("danh cao toc snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("danh cao toc snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( danh cao toc snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("danh cao toc snippets"))) or ("locating bug core snippets"))*.