Perhaps you should try some spelling variations:
chau tre » chay tren, chau tho, cho tre
tai chau » lai chau, mai chau, hai chau
hanh tai » thanh tai, hang tai, han tai
hieu van » hieu va, thien van, lieu va
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
can ky » van ky, dan ky, ban ky
tu can » tu ban, tu cac, thu canh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu can ky ((nang xa) OR (nang ma)) hoi. hieu van ((cau luc) or (cam xuc)) va hanh tai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky ((nang xa) OR (nang ma)) hoi. hieu van ((cau luc) OR (cam xuc)) va hanh tai chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky ((nang xa) OR (nang ma)) hoi. hieu van ((cau luc) or (cam xuc)) va hanh tai chau tre".
• Adding a wildcard symbol may retrieve word variants: tu can ky ((nang xa) OR (nang ma)) hoi. hieu van ((cau luc) or (cam xuc)) va hanh tai chau tre*.