Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao nam doi snippets" » "cao dam doi snippets", "dao nam doi snippets", "cai nam doi snippets", "cao nam hoi snippets", "cao nam do snippets", "cao nam noi 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: (((("cao nam doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao nam doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao nam doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao nam doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.