Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cu doan ngoc snippets" » "cu hoang ngoc snippets", "cu tran ngoc snippets", "cu van ngoc snippets", "cu dan ngoc snippets", "du doan ngoc snippets", "cua doanh ngoc 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: (((("cu doan ngoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cu doan ngoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cu doan ngoc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cu doan ngoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.