Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trao hoc chi snippets" » "thao hoc chi snippets", "trac hoc chi snippets", "trao ho chi snippets", "trao hoc chia snippets", "trao hoc cho snippets", "trao hoc chu 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: (((("trao hoc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trao hoc chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trao hoc chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trao hoc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.