Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap moi voi snippets" » "gia moi voi snippets", "giap voi voi snippets", "gian mot voi snippets", "giap doi voi snippets", "giap moi doi snippets", "giap moi thoi 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: (((("giap moi 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: (((("giap moi voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap moi voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap moi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.