Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
sach thu » sach thue, sach thieu, sach tham
xuc van » duc van, luc van, vuc van
hieu ve » hieu va
sach tu » cach tu, sach ty, sach uu
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
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 tu) or (sach thu)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh vi cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (sach thu)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh vi cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) or (sach thu)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh vi cua cu".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (sach thu)) nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh vi cua cu*.