Perhaps you should try some spelling variations:
thien van » thi van
lam thuoc » nam thuoc, am thuc, cay thuoc
cau tren » cu tren, dau tren, ca tren
thuoc va » thuc va, thuoc ma, thuong va
dan vai » dan va, den vai, dang van
dan tai » van tai, dan thi, han tai
dan vat » dang vat, van vat, dan va
te sach » toc sach
sach ky » sac ky, sach y, sach ty
van lam » van nam
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky dang xa hoi. thien van lam thuoc va ((((dan vai) OR (dan vat))) or (dan tai)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang xa hoi. thien van lam thuoc va ((((dan vai) OR (dan vat))) OR (dan tai)) cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang xa hoi. thien van lam thuoc va ((((dan vai) OR (dan vat))) or (dan tai)) cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang xa hoi. thien van lam thuoc va ((((dan vai) OR (dan vat))) or (dan tai)) cau tren*.