Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat huu chan snippets" » "bat huu han snippets", "bat huu chau snippets", "bat huu phan snippets", "bat hu chan snippets", "chat huu chan snippets", "bat thuy chan 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: (((("bat huu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bat huu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat huu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat huu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.