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