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