Perhaps you should try some spelling variations:
su triet » su viet, su tien
van tham » van thanh, van tuan, van chat
ve triet » va trien
danh tai » doanh tai, dinh tai, hanh tai
van cham » van chat, va cham, van pham
va danh » va dinh, va dan, va hanh
cao hoi » cau hoi, co hoi, cao hoc
su sach » so sach, vu sach
y nang » ky nang, ly nang, v nang
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang cao hoi. thien ((van cham) OR (van tham)) soc va danh tai ((ve triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang cao hoi. thien ((van cham) OR (van tham)) soc va danh tai ((ve triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang cao hoi. thien ((van cham) OR (van tham)) soc va danh tai ((ve triet) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang cao hoi. thien ((van cham) OR (van tham)) soc va danh tai ((ve triet) or (su triet))*.