Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu hien da snippets" » "thuc hien da snippets", "thi hien da snippets", "thua thien da snippets", "thu hien dai snippets", "thu vien da snippets", "thu hien du 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: (((("thu hien da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu hien da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu hien da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu hien da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.