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