Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhanh vi hoc snippets" » "hanh vi hoc snippets", "nhanh va hoc snippets", "nhanh thi hoc snippets", "nhanh li 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: (((("nhanh vi 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: (((("nhanh vi hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhanh vi hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhanh vi hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.