Perhaps you should try some spelling variations:
sach hoi » sach doi, sach moi, cach thoi
hoi lang » hoa lang, hoi dan
thuc van » thuc vat, thuc dan, thuc va
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
tuc van » truc van, tuc va, duc van
cua tuc » cua duc, cua tu, cua thuoc
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di cua

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 hoi lang xa hoi. hieu ve cam ((tuc van) or (thuc van)) hanh vi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi lang xa hoi. hieu ve cam ((tuc van) OR (thuc van)) hanh vi cua tuc.
• Adding a wildcard symbol may retrieve word variants: te sach hoi lang xa hoi. hieu ve cam ((tuc van) or (thuc van)) hanh vi cua tuc*.