Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cua ve snippets" » "van cua code snippets", "vang cua ve snippets", "ban cua ve snippets", "dan cua ve snippets", "van cua vi snippets", "van cua te snippets", "van cua vu 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: (((("van cua ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cua ve snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van cua ve snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van cua ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.