Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi oanh le snippets" » "thi hanh le snippets", "thi anh le snippets", "thi thanh le snippets", "thi manh le snippets", "thi doanh ly 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 oanh le 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 oanh le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi oanh le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi oanh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.