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