Perhaps you should try some spelling variations:
chay tren » thai tren, ca tren, cau tren
tuc tang » thuc trang, duc thang, duc tan
chau tre » chau tho, cho tre, cau tra
hang tai » hang va, dung tai
duc tang » duc thang, duc tan, duc tung
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam

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 nang xa hoi. hieu ve cam ((duc tang) or (tuc tang)) hang tai ((chau tre) or (chay tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ve cam ((duc tang) OR (tuc tang)) hang tai ((chau tre) OR (chay tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ve cam ((duc tang) or (tuc tang)) hang tai ((chau tre) or (chay tren))*.