Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuan ha du snippets" » "chuan he du snippets", "quan ha du snippets", "xuan ha du snippets", "chuan pha du snippets", "chuan han du snippets", "chuan hoa du 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: (((("chuan ha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chuan ha du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuan ha du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuan ha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.