Perhaps you should try some spelling variations:
cap nuoc » dat nuoc
van hanh » van thanh, ban hanh, van anh
nuoc van » nuoc va, nuoc san, luoc van
te sach » toc sach
nang xa » nang x, nang ma, mang xa
lang xa » dang xay, lang van
lang ha » long ha
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
ve cap » ve cac, le cap, ve cai
cua cu » cua chu, cua cau, cua su

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 xa) or (((lang xa) OR (lang ha)))) hoi. hieu ve cap nuoc van hanh vi cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (((lang xa) OR (lang ha)))) hoi. hieu ve cap nuoc van hanh vi cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) or (((lang xa) OR (lang ha)))) hoi. hieu ve cap nuoc van hanh vi cua cu".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (((lang xa) OR (lang ha)))) hoi. hieu ve cap nuoc van hanh vi cua cu*.