Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuan ha so snippets" » "chuan he so snippets", "quan ha so snippets", "xuan ha so snippets", "chuan ha son snippets", "chuan hai so snippets", "chuan ham so 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 so 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 so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuan ha so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuan ha so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.