Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap duc chau snippets" » "lap duc hau snippets", "lap duoc chat snippets", "lap nuoc chau snippets", "lap du chau snippets", "lap doc chau snippets", "giap duc 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: (((("lap duc chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap duc chau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap duc chau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap duc chau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.