Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chao van ca snippets" » "cao van ca snippets", "hao van ca snippets", "thao van ca snippets", "chao van cau snippets", "chao van cua snippets", "chao 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: (((("chao van ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chao van ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chao van ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao van ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.