Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
hieu van » hieu va, thien van, lieu va
tham xuc » tham nuoc, pham duc, cam xuc
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
sac ky » cac ky
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: tu ((sac ky) or (sai ky)) nang xa hoi. hieu van ((tham xuc) OR (tham thuc)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) nang xa hoi. hieu van ((tham xuc) OR (tham thuc)) va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (sai ky)) nang xa hoi. hieu van ((tham xuc) OR (tham thuc)) va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) nang xa hoi. hieu van ((tham xuc) OR (tham thuc)) va hanh vi cua te*.