Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
dan lap » phan lap, dan luan
dan lai » dan loai, dan lat, dan li
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
ky lang » ky dang, ky tang, tay lang
su tien » su kien, su hien, tu tieng
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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 ((ky lang) or (ky nang)) xa hoi. hieu ve cam tuc va ((dan lai) or (dan lap)) su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cam tuc va ((dan lai) OR (dan lap)) su tien.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky lang) or (ky nang)) xa hoi. hieu ve cam tuc va ((dan lai) or (dan lap)) su tien*.