Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
te sach » toc sach
dua ban » dia ban, cua ban, qua ban
ky sang » ky nang, ky tang, duy sang
lai cua » dai cua, hai cua, lai chau
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
duc ban » duc tan, duc van, duc man
ve cao » va cao, ve bao, ve cac
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: te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cao ((duc ban) or (dua ban)) thanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cao ((duc ban) OR (dua ban)) thanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cao ((duc ban) or (dua ban)) thanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky sang) OR (ky dang)) ma hoi. hieu ve cao ((duc ban) or (dua ban)) thanh lai cua te*.