Perhaps you should try some spelling variations:
thien van » thi van
nang cau » nang cao, hang cau, nang dau
van cham » van chat, van tham, va cham
danh tai » doanh tai, dinh tai, hanh tai
ve triet » va trien
su triet » su viet, su tien
su sach » so sach, vu sach
va danh » va dinh, va dan, va hanh
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 cau hoi. thien van cham 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 cau hoi. thien van cham soc va danh tai ((ve triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang cau hoi. thien van cham soc va danh tai ((ve triet) or (su triet))*.