Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"minh tuan da snippets" » "anh tuan da snippets", "minh tuan do snippets", "minh tuan dang snippets", "minh toan dam 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: (((("minh tuan 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: (((("minh tuan da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( minh tuan da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("minh tuan da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.