Perhaps you should try some spelling variations:
gian dong » gian don, gian song, gia dong
dong tien » duong tien, dong tin, dong dien
khoe sach » khoa sach, hoc sach, khoe sinh
dong kien » dong dien, don kien, dong hien
pho sach » khoa sach, pham sach, pho trach
dieu cua » dieu tra
hang cua » mang cua, hang ca, huong cua
lan dieu » luan dieu, han dieu, nhan dieu
tiep cua » tiep can, tap cua, tiep va
qua tiep » qua tieu, cua tiep, qua dieu
tien thu » tieu thu, trien thi, bien thuc
ban cua » ban quan
cap qua » cau qua, cac qua, cay qua
san cua » sang cua, dan cua, nan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( thoi gian dong tien thu ) or ( thoi gian dong kien thuc ))) or ((( pho cap qua tiep cua ) or ((( pha ((((san cua) or (hang cua))) or (ban cua)) dieu cua ) or ( ((pho sach) OR (khoe sach)) lan dieu tri ))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( thoi gian dong tien thu ) OR ( thoi gian dong kien thuc ))) OR ((( pho cap qua tiep cua ) OR ((( pha ((((san cua) OR (hang cua))) OR (ban cua)) dieu cua ) OR ( ((pho sach) OR (khoe sach)) lan dieu tri ))))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( thoi gian dong tien thu ) or ( thoi gian dong kien thuc ))) or ((( pho cap qua tiep cua ) or ((( pha ((((san cua) or (hang cua))) or (ban cua)) dieu cua ) or ( ((pho sach) OR (khoe sach)) lan dieu tri ))))))*".