Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu cao » chieu cao, hieu cac, hieu ca
cao chet » cao chat, cai chet, chai chet
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
duoc va » nuoc va, duoc ma, duong va
do cua » doi cua, co cua, dong cua
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky sang xa hoi. hieu cao chet ((duoc va) OR (duc va)) danh ((do cua) or (de cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky sang xa hoi. hieu cao chet ((duoc va) OR (duc va)) danh ((do cua) OR (de cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky sang xa hoi. hieu cao chet ((duoc va) OR (duc va)) danh ((do cua) or (de cua)) tre*".