Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai cach hoc snippets" » "loi cach hoc snippets", "cai cach hoc snippets", "lai sach hoc snippets", "lai cach thuc snippets", "lai cach thoi snippets", "lai dich hoc 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: (((("lai cach hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lai cach hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai cach hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai cach hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.