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