Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua minh son snippets" » "cua sinh son snippets", "cua tinh son snippets", "cua kinh son snippets", "cua minh toan snippets", "cua 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: (((("cua 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: (((("cua minh son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua minh son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua minh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.