Perhaps you should try some spelling variations:
truc van » truc va, thuc van, truc ban
dang xay » dang van, van xay
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
tuc van » thuc van, tuc va, duc van
cua tuc » cua duc, cua tu, cua thuoc
hieu va » lieu va, hieu qua
lang xa » lang ha, lang van
di cua » dai cua, doi cua, de cua
va cam » va cham, va cac, va cao

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 y ((lang xa) or (dang xay)) hoi. hieu va cam ((tuc van) OR (truc van)) hanh di cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang xa) OR (dang xay)) hoi. hieu va cam ((tuc van) OR (truc van)) hanh di cua tuc*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((lang xa) or (dang xay)) hoi. hieu va cam ((tuc van) OR (truc van)) hanh di cua tuc*".