Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thien van » thi van
van hanh » van thanh, ban hanh, van anh
sach ty » sach y, sach tu, sach thu
cua tuc » cua duc, luat tuc, cua nuoc
duc van » duc va, duc tan, duc manh
te sach » toc sach
van hac » van hoc, van ha, van hai
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
hac duc » hoc duc, ha duc, thach duc
ma hoi » mai hoi, xa hoi, ma hoa
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: te sach ty nang ma hoi. thien van hac duc van hanh vi ((cua tu) or (((cua tuc) OR (cua thuoc))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ma hoi. thien van hac duc van hanh vi ((cua tu) OR (((cua tuc) OR (cua thuoc)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ma hoi. thien van hac duc van hanh vi ((cua tu) or (((cua tuc) OR (cua thuoc))))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ma hoi. thien van hac duc van hanh vi ((cua tu) or (((cua tuc) OR (cua thuoc))))*.