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