Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thuc dan vo snippets" » "thuc dan code snippets", "thuc hanh vo snippets", "hoc dan vo snippets", "thuc vat vo snippets", "thuc dan va snippets", "thuc dan ve snippets", "thuc dan mo 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: (((("thuc dan vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc dan vo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thuc dan vo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc dan vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.