Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac minh chi snippets" » "xac dinh chi snippets", "xuan minh chi snippets", "van minh chi snippets", "xac linh chi snippets", "xac minh chau 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: (((("xac minh 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: (((("xac minh chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xac minh chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac minh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.