Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
toc sach » hoc sach, doc sach, thuoc sach
nang mai » nang ma, nang tai, lang mai
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
cua tuc » cua duc, luat tuc, cua nuoc
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
sach v » sach va, sach y, sach 2
ve cac » va cac, vien cac
v nang » va nang, vu nang, van nang
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach v nang mai hoi. hieu ve cac xuc van hanh vi ((((cua tuc) OR (cua thuoc))) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v nang mai hoi. hieu ve cac xuc van hanh vi ((((cua tuc) OR (cua thuoc))) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach v nang mai hoi. hieu ve cac xuc van hanh vi ((((cua tuc) OR (cua thuoc))) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: toc sach v nang mai hoi. hieu ve cac xuc van hanh vi ((((cua tuc) OR (cua thuoc))) or (cua tu))*.