Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
tan lanh » tai lanh, thanh lanh, tan thanh
lanh hai » manh hai, thanh hai, lang chai
dang cac » dung cac, bang cac, dong cac
cac phoi » cac thoi, cac khoi, cap phoi
su sach » vu sach
cac duc » cac du, cao duc, cac dac
ky dang » ky nang, ky danh
so sach » so sanh, bo sach, co sach
hieu va » lieu va, hieu qua

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) or (so sach)) ky dang cac phoi. hieu va cac duc tan lanh hai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky dang cac phoi. hieu va cac duc tan lanh hai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ky dang cac phoi. hieu va cac duc tan lanh hai ((cua triet) or (su triet))*.