Perhaps you should try some spelling variations:
thang di » hang di, tang di, thang loi
thuc van » thuc vat, thuc dan, thuc va
chuc van » chu van, chuc va, chuc can
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky
di cua » dai cua, doi cua, de cua
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc ((sac ky) OR (sai ky)) nang xa hoi. hieu ve cau ((chuc van) or (thuc van)) thang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc ((sac ky) OR (sai ky)) nang xa hoi. hieu ve cau ((chuc van) OR (thuc van)) thang di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc ((sac ky) OR (sai ky)) nang xa hoi. hieu ve cau ((chuc van) or (thuc van)) thang di cua tre".
• Adding a wildcard symbol may retrieve word variants: nuoc ((sac ky) OR (sai ky)) nang xa hoi. hieu ve cau ((chuc van) or (thuc van)) thang di cua tre*.