Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
ve chai » ve cai, ve chat, va chai
chai tu » cai tu, choi tu, chay tu
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ((ky lang) OR (ky dang)) xa hoi. hieu ve chai tu va danh va su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky lang) OR (ky dang)) xa hoi. hieu ve chai tu va danh va su triet".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky lang) OR (ky dang)) xa hoi. hieu ve chai tu va danh va su triet*.