Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho ga hoc snippets" » "cho gv hoc snippets", "cho giao hoc snippets", "cho va hoc snippets", "cho ta hoc snippets", "cho xa hoc 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: (((("cho ga hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho ga hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho ga hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho ga hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.