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