Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hinh thai » sinh thai, tinh thai, dinh thi
hanh thai » nhanh thai, hanh tai, anh thai
sach ky » sac ky, sach y, sach ty
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
so hai » son hai, su hai, so ha
ve cam » ve cham, ve cac, va cam
o hai » co hai, o lai, _ hai

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 nang ((o hai) OR (so hai)). hieu ve cam xuc van ((hanh thai) or (hinh thai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((o hai) OR (so hai)). hieu ve cam xuc van ((hanh thai) OR (hinh thai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((o hai) OR (so hai)). hieu ve cam xuc van ((hanh thai) or (hinh thai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((o hai) OR (so hai)). hieu ve cam xuc van ((hanh thai) or (hinh thai)) cua triet*.