Perhaps you should try some spelling variations:
sach triet » sach thieu, sach tien, sach tren
cach thuc » anh thuc, cac thu
phu thong » pho thong, phap thong, khau thong
thuc tue » thuc te, thuc que, thuc tre
tue sach » te sach, tu sach, theo sach
sinh kha » sinh khoa, sinh thai, dinh khoa
su cach » tu cach, su cac, cuu cach
nha phu » nha chu, nhanh phu, chau phu
su sach » so sach, vu sach
kha he » khoa he, kha ke

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su cach thuc tue sach nha phu thong ) or ( su sach triet hoc sinh kha he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su cach thuc tue sach nha phu thong ) OR ( su sach triet hoc sinh kha he thong )).
• Adding a wildcard symbol may retrieve word variants: (( su cach thuc tue sach nha phu thong ) or ( su sach triet hoc sinh kha he thong ))*.