Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
nang ho » nang hoc, nang co, tang ho
van lam » van nam
luc van » luoc van, luu van, duc van
nang o » nang co, nang ro, nang x
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((nang o) OR (nang ho)) hoi. hieu van lam ((luc van) or (duc tan)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang o) OR (nang ho)) hoi. hieu van lam ((luc van) OR (duc tan)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang o) OR (nang ho)) hoi. hieu van lam ((luc van) or (duc tan)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((nang o) OR (nang ho)) hoi. hieu van lam ((luc van) or (duc tan)) hanh vi cua te*.