Perhaps you should try some spelling variations:
kinh tai » hinh tai, dinh tai, kinh hai
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va kinh » va tinh, qua kinh
cua tre » cuu tre, cua triet, dua tren
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
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: su sach ((y lang) OR (_ lang)) xa hoi. hieu ve cam tuc va kinh tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y lang) OR (_ lang)) xa hoi. hieu ve cam tuc va kinh tai ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y lang) OR (_ lang)) xa hoi. hieu ve cam tuc va kinh tai ((cua tre) or (cua te))*".