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