Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
viec cam » viec lam, viec cua, vien cac
lang xa » lang ha, lang van
sach ky » sac ky, sach y, sach ty
viec va » vien va, viec cua, viec lam
va tinh » may tinh
tinh de » tinh da, sinh de, tinh he
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((lang xa) or (dang xay)) hoi. nhieu ((viec cam) OR (viec va)) xuc va tinh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((lang xa) OR (dang xay)) hoi. nhieu ((viec cam) OR (viec va)) xuc va tinh de cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((lang xa) or (dang xay)) hoi. nhieu ((viec cam) OR (viec va)) xuc va tinh de cua triet*".