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