Perhaps you should try some spelling variations:
kham tuc » nham thuc, pham thuc, kham cuoc
hieu vu » hieu va, hieu ve, hieu su
dat cuu » dat cau, dat cua
dan dat » dung dat, dong dat, dinh dat
vu kham » vu khanh
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, v nang, may nang
ma hoi » mai hoi, ma hoa, me hoi
tuc va » thuc va, truc va, tuc xa
va dan » ca dan, va dao, va dau

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 ((y nang) OR (ly nang)) ((ma hoi) or (xa hoi)). hieu vu kham tuc va dan dat cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly nang)) ((ma hoi) OR (xa hoi)). hieu vu kham tuc va dan dat cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) OR (ly nang)) ((ma hoi) or (xa hoi)). hieu vu kham tuc va dan dat cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) OR (ly nang)) ((ma hoi) or (xa hoi)). hieu vu kham tuc va dan dat cuu tre*.