Perhaps you should try some spelling variations:
cham duc » cham soc, pham duy, phan duc
tinh ven » trinh ven, tinh yen, sinh vien
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
va tinh » may tinh
ven cua » ben cua, gen cua, men cua
y nang » ly nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y nang) OR (ky nang)) ma hoi. hieu ve ((cham duc) or (pham duc)) va tinh ven cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) ma hoi. hieu ve ((cham duc) OR (pham duc)) va tinh ven cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (ky nang)) ma hoi. hieu ve ((cham duc) or (pham duc)) va tinh ven cua te*".