Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vang » anh vang, hanh mang, hanh van
thien van » thi van
vang cua » mang cua, hang cua, tang cua
ban hanh » ban hang
da duoc » tao duoc, hoa duoc
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
lam duc » lam duoc, pham duc, nam duoc
ma hoi » mai hoi, xa hoi, me hoi

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 ky nang ((ma hoi) OR (ma hoa)). thien van ((lam duc) or (da duoc)) ban hanh vang cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((ma hoi) OR (ma hoa)). thien van ((lam duc) OR (da duoc)) ban hanh vang cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((ma hoi) OR (ma hoa)). thien van ((lam duc) or (da duoc)) ban hanh vang cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((ma hoi) OR (ma hoa)). thien van ((lam duc) or (da duoc)) ban hanh vang cua triet*.