Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
thien van » thi van
phuc dang » phuc dong, phuc hang, thuoc dang
van hanh » van thanh, ban hanh, van anh
thanh ve » hanh ve, thanh va, thanh vien
cua tre » cua te, cua triet, dua tren
sach tu » sach thu, cach tu, sach uu
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach thu, xach tay
cuu tre » cau tren, cau treo

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 tu) or (sach ty)) nang xa hoi. thien van hanh phuc dang thanh ve ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach tu) OR (sach ty)) nang xa hoi. thien van hanh phuc dang thanh ve ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tu) or (sach ty)) nang xa hoi. thien van hanh phuc dang thanh ve ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su ((sach tu) or (sach ty)) nang xa hoi. thien van hanh phuc dang thanh ve ((cua tre) OR (cuu tre))*.