Perhaps you should try some spelling variations:
sach tham » sach nha
hieu van » thien van, lieu va, hieu ve
thanh vi » hanh vi, thanh va, thanh ve
dang cay » dang xay, dang ca, dang cac
duc gia » quoc gia
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
cay cho » cap cho, cao cho, cay co
luu tre » luu tru, cuu tre, luy tre
vi luu » vi lua

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 ty) or (sach tham)) dang cay cho. ((hieu van) OR (hieu va)) pham duc gia thanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tham)) dang cay cho. ((hieu van) OR (hieu va)) pham duc gia thanh vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) or (sach tham)) dang cay cho. ((hieu van) OR (hieu va)) pham duc gia thanh vi luu tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach tham)) dang cay cho. ((hieu van) OR (hieu va)) pham duc gia thanh vi luu tre*.