Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van moi con snippets" » "van moi code snippets", "van muoi con snippets", "van loi con snippets", "ban moi con snippets", "van moi cong snippets", "van moi co snippets", "van mot con 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 moi con 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 moi con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van moi con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van moi con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.