Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi minh son snippets" » "thoi minh son snippets", "hoi tinh son snippets", "hoi sinh son snippets", "hoi minh toan snippets", "hoi dinh so 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: (((("hoi minh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi minh son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi minh son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi minh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.