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