Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang cho cu snippets" » "danh cho cu snippets", "dung cho cu snippets", "sang tao cu snippets", "sang cho chu snippets", "sang cho ca snippets", "sang cho tu 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: (((("sang cho cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sang cho cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang cho cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang cho cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.