Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi loan ho snippets" » "thi lan ho snippets", "thi hoan ho snippets", "thi lien ho snippets", "thi toan ho snippets", "thi toan hoc snippets", "thi hoan hao 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: (((("thi loan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi loan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi loan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi loan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.