Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim lieu hoc snippets" » "kim lien hoc snippets", "kim lu hoc snippets", "kim tien hoc snippets", "kim lieu khoa snippets", "kim li 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: (((("kim lieu 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: (((("kim lieu hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim lieu hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim lieu hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.