Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
su triet » su viet, su tien, ve triet
vuc nang » cuc nang, vu nang, chuc nang
hanh hai » thanh hai, nhanh hai, hang hai
sach vuc » sach duoc, sach nuoc, sach truc
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
ve cac » va cac, vien cac

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 vuc nang ma hoa. hieu ((ve cac) or (va cham)) duc va hanh hai ((chau triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach vuc nang ma hoa. hieu ((ve cac) OR (va cham)) duc va hanh hai ((chau triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach vuc nang ma hoa. hieu ((ve cac) or (va cham)) duc va hanh hai ((chau triet) or (su triet))*.