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