Perhaps you should try some spelling variations:
thien van » thi van
hoc trung » hoc truong, hoc trong, hoc thuong
trung va » truong va, trang va, trung ha
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van hoc » van hoa
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cac) or (su sach)) ky nang xa hoi. thien van hoc trung va hanh ((vai cua) OR (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (su sach)) ky nang xa hoi. thien van hoc trung va hanh ((vai cua) OR (lai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (su sach)) ky nang xa hoi. thien van hoc trung va hanh ((vai cua) OR (lai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (su sach)) ky nang xa hoi. thien van hoc trung va hanh ((vai cua) OR (lai cua)) tre*.