Perhaps you should try some spelling variations:
thien van » thi van
van chat » cao chat
danh dai » danh dau, danh di, danh sai
cua viet » ca viet, hoa viet, cua vat
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
soc va » loc va, doc va, goc 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 ky) OR (sac ky)) nang xa hoi. thien van chat ((soc va) or (hoc va)) danh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang xa hoi. thien van chat ((soc va) OR (hoc va)) danh dai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sac ky)) nang xa hoi. thien van chat ((soc va) or (hoc va)) danh dai cua viet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sac ky)) nang xa hoi. thien van chat ((soc va) or (hoc va)) danh dai cua viet*.