Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu thanh de snippets" » "cuu thanh de snippets", "cho thanh de snippets", "thu thanh de snippets", "chu hanh de snippets", "chu thanh ve snippets", "chu thanh do 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: (((("chu thanh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu thanh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu thanh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu thanh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.