Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"da lieu nhe snippets" » "da lieu nghe snippets", "da lieu nha snippets", "da lieu che snippets", "du lieu nhe snippets", "da dieu nhe snippets", "vat lieu nhe snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"da lieu nhe snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( da lieu nhe snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da lieu nhe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.