Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong va son snippets" » "dong va code snippets", "dung va son snippets", "dong ha son snippets", "luong va son snippets", "dong van son snippets", "dong va con snippets", "dong va san 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: (((("dong va son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong va son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong va son snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong va son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.