Perhaps you should try some spelling variations:
thien van » thi van
vu khich » vu khach, vu khanh, vu khac
tham xuc » tham nuoc, tham thuc, pham duc
khich le » thinh le, dich le, tich le
hieu van » hieu va, lieu va, hieu ve
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
va hang » van hang, va nang, va lang
hang di » hang doi, hang vi, hang dien
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khich le ((nang xa) or (nang ma)) hoi. ((hieu van) OR (thien van)) tham xuc va hang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khich le ((nang xa) OR (nang ma)) hoi. ((hieu van) OR (thien van)) tham xuc va hang di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khich le ((nang xa) or (nang ma)) hoi. ((hieu van) OR (thien van)) tham xuc va hang di cua tre".
• Adding a wildcard symbol may retrieve word variants: vu khich le ((nang xa) or (nang ma)) hoi. ((hieu van) OR (thien van)) tham xuc va hang di cua tre*.