Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan cac moi snippets" » "dan cac code snippets", "dan cach moi snippets", "dang cac moi snippets", "dan ca moi snippets", "dan cac mon snippets", "dan cac toi snippets", "dan cac thoi 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: (((("dan cac moi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan cac moi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan cac moi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cac moi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.