Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap thuc du snippets" » "tap tuc du snippets", "tam thuc du snippets", "toan thuc du snippets", "tap truc du snippets", "tap thuc su snippets", "tap thuc tu 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: (((("tap thuc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap thuc du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap thuc du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap thuc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.