Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang ngoc he snippets" » "dang ngoc code snippets", "hoang ngoc he snippets", "van ngoc he snippets", "dang nghe he snippets", "dang ngoc hue snippets", "dang ngoc ha snippets", "dang ngoc de 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: (((("dang ngoc he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang ngoc he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang ngoc he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang ngoc he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.