Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan duoc do snippets" » "phan duoc code snippets", "phan duc do snippets", "phan quoc do snippets", "nhan duoc do snippets", "phan duoc dao snippets", "phan duoc co snippets", "phan duoc vo 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: (((("phan duoc 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: (((("phan duoc do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan duoc do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan duoc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.