Perhaps you should try some spelling variations:
thien cac » thien cau, thieu cac, trien cac
hien cac » vien cac, hieu cac, dien cac
va thanh » gia thanh, ban thanh, le thanh
su sach » so sach, vu sach
san cua » sang cua, ban cua, dan cua
sach ky » sac ky, sach y, sach ty
va tinh » may tinh
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ((hien cac) OR (thien cac)) lo ((va thanh) or (va tinh)) san cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ((hien cac) OR (thien cac)) lo ((va thanh) OR (va tinh)) san cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ((hien cac) OR (thien cac)) lo ((va thanh) or (va tinh)) san cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ((hien cac) OR (thien cac)) lo ((va thanh) or (va tinh)) san cua te*.