Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che moi cua snippets" » "cho moi cua snippets", "he moi cua snippets", "che mon cua snippets", "che hoi cua snippets", "che doi cua snippets", "che moi quan 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: (((("che moi 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: (((("che moi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che moi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che moi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.