Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vai cau doi snippets" » "vai cau code snippets", "va cau doi snippets", "van cau doi snippets", "vai cac doi snippets", "vai cau hoi snippets", "vai cau do snippets", "vai cau noi 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: (((("vai cau doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vai cau doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vai cau doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vai cau doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.