Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoang dat de snippets" » "hoang dat code snippets", "hoang da de snippets", "hoang dai de snippets", "hoang dang de snippets", "hoang vat de snippets", "hoang hat de snippets", "hoang dat dien 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: (((("hoang dat 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: (((("hoang dat de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoang dat de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang dat de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.