Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
te sach » toc sach
sach ty » sach y, sach tu, sach thu
nang ho » nang hoc, nang co, tang ho
hieu ve » hieu va, hieu van
xuc van » luc van, xuc ban, thuc van
duc van » duc va, duc tan, duc manh
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ro, nang x
ve cam » ve cham, ve cac, va cam

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 o) or (nang ho)) hoi. hieu ve cam ((xuc van) OR (duc van)) hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang o) OR (nang ho)) hoi. hieu ve cam ((xuc van) OR (duc van)) hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang o) or (nang ho)) hoi. hieu ve cam ((xuc van) OR (duc van)) hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang o) or (nang ho)) hoi. hieu ve cam ((xuc van) OR (duc van)) hanh lai cua tre*.