Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van than voi snippets" » "van than code snippets", "van thanh voi snippets", "van thang voi snippets", "van tuan voi snippets", "van than vo snippets", "van tan voi snippets", "van than roi 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 than voi 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 than voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van than voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van than voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.