Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"man minh can snippets" » "van minh can snippets", "man tinh can snippets", "mai minh can snippets", "man minh chanh snippets", "man minh danh snippets", "man minh tuan 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: (((("python using java snippets") or ("man minh can snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("man minh can snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( man minh can snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("man minh can snippets"))) or ("locating bug code snippets"))*.