Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan lieu co snippets" » "dan lieu code snippets", "da lieu co snippets", "dan dieu co snippets", "dang dieu co snippets", "dan lieu so snippets", "dan lieu cong snippets", "dan lieu hoc 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: (((("dan lieu co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan lieu co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan lieu co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan lieu co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.