Perhaps you should try some spelling variations:
ve triet » va trien, su triet
kinh dam » kinh dao, kinh tam, kinh danh
toc sach » hoc sach, doc sach, thuoc sach
duc qua » duc quan, duc quy, luc quan
sang xa » song xa, lang xa, sang ma
ky sang » ky nang, ky dang, ky tang
ve cac » va cac, vien cac
dam ve » dap ve, dau ve, dam me
ve cam » ve cham, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) ky sang xa hoi. hieu ((ve cam) or (ve cac)) duc qua kinh dam ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky sang xa hoi. hieu ((ve cam) OR (ve cac)) duc qua kinh dam ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky sang xa hoi. hieu ((ve cam) or (ve cac)) duc qua kinh dam ve triet*".