Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lai » thanh hai, thanh lap, thanh loi
chat xuc » chat huu, cam xuc, chao xu
ha thanh » va thanh, pham thanh, phan thanh
su sach » so sach, vu sach
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
su viet » so viet
xuc ha » xuc hay, vuc ha, duc ha

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 y ((nang ma) OR (tang ma)) hoi. hieu va chat xuc ha thanh lai ((cua triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang ma) OR (tang ma)) hoi. hieu va chat xuc ha thanh lai ((cua triet) OR (su viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang ma) OR (tang ma)) hoi. hieu va chat xuc ha thanh lai ((cua triet) or (su viet))".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang ma) OR (tang ma)) hoi. hieu va chat xuc ha thanh lai ((cua triet) or (su viet))*.