Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tra cuu snippets" » "doi tram cuu snippets", "hoi trac cuu snippets", "doi tra cau snippets", "doi trau cua snippets", "doi trua cua 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: (((("doi tra cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi tra cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tra cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tra cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.