Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong hoc do snippets" » "truong hoc do snippets", "tuong hoc do snippets", "trong hoa do snippets", "trong hoc doi snippets", "trong hoc co snippets", "trong hoc bo 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: (((("trong hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong hoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong hoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong hoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.