Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"sach cap voi snippets" » "sach cap code snippets", "sach dao voi snippets", "sach bai voi snippets", "sach xa voi snippets", "sach cap phoi snippets", "sach cham voi snippets", "sach giap voi snippets"
"python using java snippets" » "python using data 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: (((("sach cap voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach cap voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( sach cap voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach cap voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.