Perhaps you should try some spelling variations:
may nang » may nong, ky nang, cao nang
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve chao » ve chat, ve cham, ve cho
va tinh » may tinh
tinh de » tinh da, sinh de, tinh he
v nang » va nang, vu nang, van nang
de cua » le cua, te cua, dieu cua
cua te » cua tu
xu va » xu van, tu va, su va

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((((may nang) OR (cam nang))) OR (v nang)) xa hoi. hieu ve chao xu va tinh de cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((((may nang) OR (cam nang))) or (v nang)) xa hoi. hieu ve chao xu va tinh de cua te~".
• Adding a wildcard symbol may retrieve word variants: su sach ((((may nang) OR (cam nang))) or (v nang)) xa hoi. hieu ve chao xu va tinh de cua te*.