Perhaps you should try some spelling variations:
tai lang » tai cong, thi lan, va lang
manh dai » manh hai, vanh dai, manh khai
tu sach » thu sach, su sach, te sach
tai san » tai ngan
va manh » van manh, va danh, va hanh
cua tre » cua te, cuu tre, cua triet
ve cai » va cai, ve cac, ve tai
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tai lang) OR (tai san)) xa hoi. hieu ((ve cai) or (va cam)) xuc va manh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tai lang) OR (tai san)) xa hoi. hieu ((ve cai) OR (va cam)) xuc va manh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tai lang) OR (tai san)) xa hoi. hieu ((ve cai) or (va cam)) xuc va manh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((tai lang) OR (tai san)) xa hoi. hieu ((ve cai) or (va cam)) xuc va manh dai cua tre*.